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#1776 2010-10-09 07:53:38

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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#1777 2010-10-10 01:09:54

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 48,421

Re: 10 second questions

Hi bobbym,

The answers to 2475 and 2476 are Rahul, after 5 years, would be 35 years and Dipa's age now is 43 years.

#2477. The sum of the squares of two consecutive natural numbers is 313. Find the numbers.

#2478. The sum of two numbers is 15. If the sum of their reciprocals is 3/10, find the numbers.


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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#1778 2010-10-10 01:15:59

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

Re: 10 second questions

Hi ganesh;

I think I got confused on #2475. Anyway your answer is correct.



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

#1779 2010-10-10 01:54:06

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 48,421

Re: 10 second questions

Hi bobbym,

The solutions 2477 and 2478 are perfect. Good work!

#2479. The side of a square exceeds the side of the another square by 4 cm and the sum of the areas of the two squares is 400 sq.cm. Find the dimensions of the squares.


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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#1780 2010-10-10 02:00:17

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

#1781 2010-10-11 00:49:19

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 48,421

Re: 10 second questions

Hi bobbym,

The solution to 2479 is perfect. Well done!

#2480. Prove:

.

#2481. Prove:

.


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

#1782 2010-10-11 01:47:23

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

#1783 2010-10-12 01:01:32

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 48,421

Re: 10 second questions

Hi bobbym,

The solutions to 2480 and 2481 are correct. Well done!

#2482. Prove

.

#2483. Prove

.


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

#1784 2010-10-12 07:22:05

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

#1785 2010-10-12 18:07:35

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 48,421

Re: 10 second questions

Hi bobbym,

The solutions 2482 and 2483 are correct. Smart work!

#2484. If

, find the value of

.

#2485. In a right triangle ABC, the right angle at B, the ratio of AB to AC is

. Find the values of

(i)

(ii)

.


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

#1786 2010-10-12 20:05:34

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

#1787 2010-10-13 03:26:42

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 48,421

Re: 10 second questions

Hi bobbym,

The solution to 2484 is correct. Well done!

The solutions to (i) and (ii) of 2485 are respectively 1 and undefined.

#2486. In a right triangle ABC right angled at B, angle ACB =

, AB = 2 cm and BC = 1 cm. 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

#1788 2010-10-13 04:51:39

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

#1789 2010-10-13 16:21:55

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 48,421

Re: 10 second questions

Hi bobbym,

The solution to 2486 is correct. Well done!

#2487. Find the value of

.

#2488. 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

#1790 2010-10-13 17:32:01

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

#1791 2010-10-13 20:36:09

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 48,421

Re: 10 second questions

Hi bobbym,

The solutions 2487 and 2488 are perfect. Marvelous!

#2489. 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

#1792 2010-10-13 21:05:42

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

#1793 2010-10-14 01:21:48

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 48,421

Re: 10 second questions

Hi bobbym,

The solution 2489 is correct. Good work!

#2490. 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

#1794 2010-10-14 01:53:20

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

#1795 2010-10-14 17:34:15

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 48,421

Re: 10 second questions

Hi bobbym,

The solution to 2490 is exact. Keep it up!

Find the values of

in each of the following:

#2491.

#2492.

.


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

#1796 2010-10-14 18:21:40

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

#1797 2010-10-15 00:41:10

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 48,421

Re: 10 second questions

Hi bobbym,

The solutions to 2491 and 2492 are perfect. Very well done!

#2493. 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

#1798 2010-10-15 00:51:54

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

#1799 2010-10-15 16:51:12

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 48,421

Re: 10 second questions

Hi bobbym,

The solution to 2493 is correct. Good work!

#2494. The 5[sup]th[/sup] term of an Arithmetic Progression is 27 and the 8[sup]th[/sup] term is 12. Find the Arithmetic Progression.


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

#1800 2010-10-15 17:05:20

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

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