## anonymous 5 years ago it needs to be simplified using the half angle formula i need help with sqrt 1-6x/2 how do i figure this out...

1. NotTim

Try using the equation editor. I might be reading the formula wrong.

2. anonymous

no it is sqrt 1-6x/2

3. Mimi_x3

Is it: $\sqrt{\frac{1-6x}{2}}$

4. anonymous

|dw:1326780939029:dw|

5. anonymous

i forgot the cos at first

6. anonymous

$\sqrt{1-\cos6x/2}$

7. anonymous

cos3x

8. anonymous

the answer is suppose to be sin3x but idk how

9. anonymous

1-cos6x=2(sin3x)^2 i made a mistake in hurry