Discussion about math, puzzles, games and fun.   Useful symbols: ÷ × ½ √ ∞ ≠ ≤ ≥ ≈ ⇒ ± ∈ Δ θ ∴ ∑ ∫  π  -¹ ² ³ °

You are not logged in.

## #26 2006-06-23 22:58:51

fusilli_jerry89
Member
Registered: 2006-06-23
Posts: 86

### Re: Trigonometry

ganesh wrote:

T # 8

If x*sin60°*tan30°=(sin45°*cot45°)/(cos30°*cosec60°), find x.

for this i got every part easily cept sin 45 because it equals a long decimal so it didnt seem right but i got 1.414

Offline

## #27 2007-04-23 07:21:27

Eeyore
Member
Registered: 2007-04-16
Posts: 8

### Re: Trigonometry

The foot of the pole and the midpoint of the pole are in the same horizontal level. ??

Offline

## #28 2011-06-27 02:31:41

anonimnystefy
Real Member
From: Harlan's World
Registered: 2011-05-23
Posts: 16,039

### Re: Trigonometry

hi ganesh

T#7 θ=60°

T #8 I got x=√2

Last edited by anonimnystefy (2011-06-27 02:38:36)

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

## #29 2011-09-02 12:01:41

ShivamS
Member
Registered: 2011-02-07
Posts: 3,648

### Re: Trigonometry

[hide]
#2
1/9
#3
266.67m high
#5
0.258819045
What happened to number 1 and 4?

Offline

## #30 2011-09-02 12:05:22

ShivamS
Member
Registered: 2011-02-07
Posts: 3,648

### Re: Trigonometry

Oh wait, there they are.

Offline

## #31 2011-09-04 03:22:57

Stormtangent
Member
Registered: 2011-09-03
Posts: 33

### Re: Trigonometry

7.

8.

"Have you ever had a dream that you were so sure was real? What if you were unable to wake from that dream? How would you know the difference between the dream world and the real world? "

Offline

## #32 2011-09-04 16:00:15

ganesh
Registered: 2005-06-28
Posts: 28,750

### Re: Trigonometry

Hi anonimnystefy,  Shivamcoder3013, Stormtangent, and fusilli_jerry89,

The solutions #7 and #8 are correct. Excellent!

#9. If two angles of on the base of a triangle are 22.5 degrees and 112.5 degrees, then what is the ratio of the height of the triangle to length of the base?

It is no good to try to stop knowledge from going forward. Ignorance is never better than knowledge - Enrico Fermi.

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

Offline

## #33 2011-09-05 12:15:07

Stormtangent
Member
Registered: 2011-09-03
Posts: 33

### Re: Trigonometry

"Have you ever had a dream that you were so sure was real? What if you were unable to wake from that dream? How would you know the difference between the dream world and the real world? "

Offline

## #34 2011-09-05 17:18:16

ganesh
Registered: 2005-06-28
Posts: 28,750

### Re: Trigonometry

Hi Stormtangent,

The solution #9 is correct. Brilliant!

It is no good to try to stop knowledge from going forward. Ignorance is never better than knowledge - Enrico Fermi.

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

Offline

## #35 2011-09-18 09:51:08

Stormtangent
Member
Registered: 2011-09-03
Posts: 33

### Re: Trigonometry

Any new problems here?  I'm up for some of these, as I need to hone my trig.

"Have you ever had a dream that you were so sure was real? What if you were unable to wake from that dream? How would you know the difference between the dream world and the real world? "

Offline

## #36 2011-09-19 17:51:49

ganesh
Registered: 2005-06-28
Posts: 28,750

### Re: Trigonometry

Hi Stormtangent and bobbym

#10. If

, find the angle A.

It is no good to try to stop knowledge from going forward. Ignorance is never better than knowledge - Enrico Fermi.

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

Offline

## #37 2011-09-19 18:25:15

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

### Re: Trigonometry

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

## #38 2011-09-20 00:08:52

Maiya
Member
Registered: 2011-08-11
Posts: 124

### Re: Trigonometry

guess its 30 degree

Offline

## #39 2011-09-20 00:21:13

ganesh
Registered: 2005-06-28
Posts: 28,750

### Re: Trigonometry

Hi bobbym and Maiya,

The solution #10 is correct. Good work!

[Please use the hide tag, Maiya, to hide the solutions]

``[hide= The message to be hidden][/hide ]``

#11. Find the value of

.

It is no good to try to stop knowledge from going forward. Ignorance is never better than knowledge - Enrico Fermi.

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

Offline

## #40 2011-09-20 00:23:14

Maiya
Member
Registered: 2011-08-11
Posts: 124

### Re: Trigonometry

sorry i din't know that code
so whats the code????????

Offline

## #41 2011-09-20 00:25:51

Maiya
Member
Registered: 2011-08-11
Posts: 124

### Re: Trigonometry

don't bother,............
i got it anyway

Offline

## #42 2011-09-20 00:27:21

ganesh
Registered: 2005-06-28
Posts: 28,750

### Re: Trigonometry

Hi Maiya,

Hope you get the code!

It is no good to try to stop knowledge from going forward. Ignorance is never better than knowledge - Enrico Fermi.

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

Offline

## #43 2011-09-20 00:30:32

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

### Re: Trigonometry

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

## #44 2011-09-20 00:41:58

ganesh
Registered: 2005-06-28
Posts: 28,750

### Re: Trigonometry

Hi bobbym,

The solution #11 is correct. Well done!

#12. Find the value of

.

It is no good to try to stop knowledge from going forward. Ignorance is never better than knowledge - Enrico Fermi.

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

Offline

## #45 2011-09-20 00:46:53

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

### Re: Trigonometry

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

## #46 2011-09-22 07:14:42

Stormtangent
Member
Registered: 2011-09-03
Posts: 33

### Re: Trigonometry

Hi Ganesh,

"Have you ever had a dream that you were so sure was real? What if you were unable to wake from that dream? How would you know the difference between the dream world and the real world? "

Offline

## #47 2011-09-22 17:43:03

ganesh
Registered: 2005-06-28
Posts: 28,750

### Re: Trigonometry

Hi bobbym and Stormtangent,

The solution #12 is correct, bobbym! Excellent!

The solutions #10, #11, and #12 are correct, Stormtangent! Excellent!

#13. Find the value of

.

It is no good to try to stop knowledge from going forward. Ignorance is never better than knowledge - Enrico Fermi.

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

Offline

## #48 2011-09-22 17:58:56

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

### Re: Trigonometry

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

## #49 2011-09-23 07:56:31

anonimnystefy
Real Member
From: Harlan's World
Registered: 2011-05-23
Posts: 16,039

### Re: Trigonometry

hi ganesh

the thread name is spelled wrong.

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

## #50 2011-09-23 12:13:27

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

### Re: Trigonometry

Hi anonimnystefy;

I took care of it.

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