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

You are not logged in.

- Topics: Active | Unanswered

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

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

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

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

Offline

**anonimnystefy****Real Member**- From: Harlan's World
- Registered: 2011-05-23
- Posts: 16,018

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

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

[hide]

#2

1/9

#3

266.67m high

#5

0.258819045

What happened to number 1 and 4?

Offline

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

Oh wait, there they are.

Offline

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

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

**ganesh****Moderator**- Registered: 2005-06-28
- Posts: 21,730

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

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

"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

**ganesh****Moderator**- Registered: 2005-06-28
- Posts: 21,730

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

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

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

**ganesh****Moderator**- Registered: 2005-06-28
- Posts: 21,730

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

**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 106,382

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.****No great discovery was ever made without a bold guess. **

**Online**

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

guess its 30 degree

Offline

**ganesh****Moderator**- Registered: 2005-06-28
- Posts: 21,730

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

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

Offline

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

sorry i din't know that code

so whats the code????????

Offline

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

don't bother,............

i got it anyway

Offline

**ganesh****Moderator**- Registered: 2005-06-28
- Posts: 21,730

Hi Maiya,

Hope you get the code!

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

Offline

**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 106,382

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.****No great discovery was ever made without a bold guess. **

**Online**

**ganesh****Moderator**- Registered: 2005-06-28
- Posts: 21,730

Hi bobbym,

The solution #11 is correct. Well done!

#12. Find the value of

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

Offline

**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 106,382

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.****No great discovery was ever made without a bold guess. **

**Online**

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

Hi Ganesh,

Offline

**ganesh****Moderator**- Registered: 2005-06-28
- Posts: 21,730

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

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

Offline

**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 106,382

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.****No great discovery was ever made without a bold guess. **

**Online**

**anonimnystefy****Real Member**- From: Harlan's World
- Registered: 2011-05-23
- Posts: 16,018

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

**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 106,382

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.****No great discovery was ever made without a bold guess. **

**Online**