Anyone Good @ Math?

# Thread: Anyone Good @ Math?

1. ## Anyone Good @ Math?

Here is the question

How is sin h ( 2x) = 2sin(x)cos h (x)
???

2. Please... I tried very hard to forget my calculus classes that I had to take in University. Please don't remind me of that ugly stuff.

3. 2+2=5 I am so smart SMRT.

4. but one of the twos has to be really, really big....

5. I'm so glad I write and destroy stuff for a living.

6. Originally Posted by R6er
Please... I tried very hard to forget my calculus classes that I had to take in University. Please don't remind me of that ugly stuff.
It was hard for you to forget? Faaaak, I forgot real easy

7. remember the addition formulas from trigonometry where:
sinh(x+y) = sinh(x)cosh(y) + cosh(x)sinh(y)

take that to the equation sinh(2x) we can represent this as sinh(x+x) since 2x is of course equivalent to x+x

sinh(2x) = sinh(x+x) = sinh(x)cosh(x) + cosh(x)sinh(x)
= 2sinh(x)cosh(x)

hope that helps

8. Fucking nerds.

9. Originally Posted by ~tuffghost~
remember the addition formulas from trigonometry where:
sinh(x+y) = sinh(x)cosh(y) + cosh(x)sinh(y)

take that to the equation sinh(2x) we can represent this as sinh(x+x) since 2x is of course equivalent to x+x

sinh(2x) = sinh(x+x) = sinh(x)cosh(x) + cosh(x)sinh(x)
= 2sinh(x)cosh(x)

hope that helps
Nicely done!

10. Originally Posted by flowrider
Fucking nerds.
FUCKING RIGHTS!!!

11. Too nicely done. Mow they'll start posting their homework.

14. PWND at 12am!!!!!

15. Originally Posted by ~tuffghost~