sin(−t) = 8/9
Evaluate sin t.

Question

sin(−t) = 8/9
Evaluate sin t.

anonymous · Answer

sin(-x) = -sin(x)

mathmate · Answer

Sinus is an odd function, so it satisfies the following property.
Sin(t)=-sin(-t)

You can use the property to find sin(x) when sin(-x)=8/9.

anonymous · Answer

no need to find t if all yo want is sin(t)

anonymous · Answer

??

anonymous · Answer

if $\sin(t)=\frac{3}{5}$ then $\sin(-t)=-\frac{3}{5}$

anonymous · Answer

if $\sin(-t)=\frac{8}{9}$ then $\sin(t)=-\frac{8}{9}$ that is all
there are not two answers

anonymous · Answer

exactly...

anonymous · Answer

@satellite73 @pgpilot326  Sorry was chatting with prime didn't look carefully

anonymous · Answer

no worries just so @lesliemariahp gets it

anonymous · Answer

My homeworks are online and for some reason it marks this answer wrong. :(

anonymous · Answer

sin t = -8/9 is wrong?

anonymous · Answer

yup! @pgpilot326

anonymous · Answer

something's goofed in the problem statement or in the program online.

sorry

mathmate · Answer

Does it require you to express it in decimal to so many places?  Read all the instructions.

anonymous · Answer

Thank you guys regardless.

anonymous · Answer

@lesliemariahp  did the cos(217) work last time?

anonymous · Answer

nope :(

anonymous · Answer

Weird...what format solutions did it accept before?

anonymous · Answer

it didn't accept any. Not decimal or fraction. Ugh, so frustrating. Usually is takes both.

mathmate · Answer

Check the instructions.

anonymous · Answer

screenshot?

anonymous · Answer

Here try this..|dw:1375403441520:dw|