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#4376 2012-12-22 21:50:33

anonimnystefy
Real Member
From: Harlan's World
Registered: 2011-05-23
Posts: 16,049

Re: 10 second questions

Hi ganesh

Last edited by anonimnystefy (2012-12-22 23:17:22)

“Here lies the reader who will never open this book. He is forever dead.
“Taking a new step, uttering a new word, is what people fear most.” ― Fyodor Dostoyevsky, Crime and Punishment
The knowledge of some things as a function of age is a delta function.

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#4377 2012-12-22 22:05:21

bobbym
bumpkin
From: Bumpkinland
Registered: 2009-04-12
Posts: 109,606

Re: 10 second questions

Hi;

In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.

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#4378 2012-12-23 18:44:07

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 48,420

Re: 10 second questions

Hi,

The solutions #4496 and #4497 are

, julianthemath.

The solutions #4498 and #4499 are correct. Excellent, anonimnystefy and bobbym!

#4500. If d = -3, n = 18, a[sub]n[/sub] = -5, find a.

#4501. If a = -18.9, d = 2.5, a[sub]n[/sub] = 3.6, find n.

It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

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#4379 2012-12-23 19:28:07

bobbym
bumpkin
From: Bumpkinland
Registered: 2009-04-12
Posts: 109,606

Re: 10 second questions

Hi ganesh;

In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.

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#4380 2012-12-24 19:08:00

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 48,420

Re: 10 second questions

Hi bobbym,

The solutions #4500 and #4501 are correct. Neat job!

#4502. If 6 times the 6th term of an Arithmetic Progression is equal 7 times the 7th term, then what is the 13th term of the A.P.?

#4503. If pth, qth, and rth terms of an Arithmetic Progression are a, b, c respectively, then a(q-r) + b(r-p) + c(p-q) = ?

It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

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#4381 2012-12-24 22:12:01

bobbym
bumpkin
From: Bumpkinland
Registered: 2009-04-12
Posts: 109,606

Re: 10 second questions

Hi;

In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.

Offline

#4382 2012-12-25 18:32:19

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 48,420

Re: 10 second questions

Hi bobbym,

The solutions #4502 and #4503 are correct. Neat work!

#4504. In an Arithmetic Progression, if l = 28, S = 144, n = 9, find a.

#4505. In an Arithmetic Progression, if a = 3, n = 8, S = 192, find d.

It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

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#4383 2012-12-25 21:37:41

anonimnystefy
Real Member
From: Harlan's World
Registered: 2011-05-23
Posts: 16,049

Re: 10 second questions

Hi ganesh

“Here lies the reader who will never open this book. He is forever dead.
“Taking a new step, uttering a new word, is what people fear most.” ― Fyodor Dostoyevsky, Crime and Punishment
The knowledge of some things as a function of age is a delta function.

Offline

#4384 2012-12-25 22:10:42

bobbym
bumpkin
From: Bumpkinland
Registered: 2009-04-12
Posts: 109,606

Re: 10 second questions

Hi;

In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.

Offline

#4385 2012-12-26 19:23:08

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 48,420

Re: 10 second questions

Hi anonimnystefy and bobbym,

The solutions #4504 and #4505

In triangle ABC, right angled at B, AB = 24 cm, BC = 7 cm. Determine:

#4506. sin A, cos A.

#4507. sin C, cos C.

It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

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#4386 2012-12-26 21:23:55

bobbym
bumpkin
From: Bumpkinland
Registered: 2009-04-12
Posts: 109,606

Re: 10 second questions

Hi;

In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.

Offline

#4387 2012-12-27 19:04:23

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 48,420

Re: 10 second questions

Hi bobbym,

The solutions #4506 and #4507 are correct. Good work!

If sin A = 3/4, calculate

#4508. cos A

#4509. tan A.

It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

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#4388 2012-12-28 08:07:49

bobbym
bumpkin
From: Bumpkinland
Registered: 2009-04-12
Posts: 109,606

Re: 10 second questions

Hi;

In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.

Offline

#4389 2012-12-28 17:42:02

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 48,420

Re: 10 second questions

Hi bobbym,

The solutions #4508 and #4509 are correct. Brilliant!

Given sec θ = 13/12, find

#4510. cosec θ

#4511. cot θ

It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

Offline

#4390 2012-12-28 23:01:52

bobbym
bumpkin
From: Bumpkinland
Registered: 2009-04-12
Posts: 109,606

Re: 10 second questions

Hi;

In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.

Offline

#4391 2012-12-29 18:35:03

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 48,420

Re: 10 second questions

Hi bobbym,

The solutions #4510 and #4511 are correct. Good work!

In triangle ABC, right angled at B, if

, find the value of

#4512. sin A cos C + cos A sin C

#4513. cos A cos C - sin A sin C

It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

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#4392 2012-12-30 01:12:15

bobbym
bumpkin
From: Bumpkinland
Registered: 2009-04-12
Posts: 109,606

Re: 10 second questions

Hi ganesh;

In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.

Offline

#4393 2012-12-30 18:34:13

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 48,420

Re: 10 second questions

Hi bobbym,

The solutions #4512 and #4513 are correct. Neat work!

#4514. In a triangle ABC right angled at C, if tan A =

, find sin A cos B + cos A sin B.

#4515. If cosec A = 2, find the value of

.

It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

Offline

#4394 2012-12-31 02:51:08

bobbym
bumpkin
From: Bumpkinland
Registered: 2009-04-12
Posts: 109,606

Re: 10 second questions

Hi;

In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.

Offline

#4395 2012-12-31 18:38:07

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 48,420

Re: 10 second questions

Hi bobbym,

The solutions #4514 and #4515 are correct. Neat work!

Evaluate :

#4516. sin 60[sup]o[/sup] cos 30[sup]o[/sup] + sin 30[sup]o[/sup] cos 60[sup]o[/sup]

#4517. 2 tan[sup]2[/sup]45[sup]o[/sup] + cos[sup]2[/sup]30[sup]o[/sup] - sin[sup]2[/sup]60[sup]o[/sup]

It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

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#4396 2013-01-01 01:55:55

bobbym
bumpkin
From: Bumpkinland
Registered: 2009-04-12
Posts: 109,606

Re: 10 second questions

Hi ganesh;

In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.

Offline

#4397 2013-01-01 18:36:12

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 48,420

Re: 10 second questions

Hi bobbym,

The solutions #4516 and #4517 are correct. Good work!

#4518. If tan θ =

, then find the value of sin θ.

#4519. If sin θ = 5/13, then find the value of tan θ.

It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

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#4398 2013-01-01 22:39:19

scientia
Member
Registered: 2009-11-13
Posts: 224

Re: 10 second questions

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#4399 2013-01-02 03:36:00

bobbym
bumpkin
From: Bumpkinland
Registered: 2009-04-12
Posts: 109,606

Re: 10 second questions

Hi ganesh;

In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.

Offline

#4400 2013-01-02 19:08:39

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 48,420

Re: 10 second questions

Hi scientia and bobbym,

The solutions #4518 and #4519 are correct. Good work!

#4520. Find the value of cosec[sup]2[/sup]55[sup]o[/sup] - cot[sup]2[/sup]55[sup]o[/sup].

#4521. If cot A = 20/21, find the value of cosec A.

It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

Offline

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