Question

Double checking? (: The picture is in the attachment below. I'm pretty sure that -(sin theta) is the same as sin(-theta) since the others don't really make sense to me, but I couldn't find anything in my notes.

Answer 1

Acr sin (theta) is sin^-1 so that can't be the answer.

Answer 2

1/cos theta is secant. And the other option that isn't in the picture in cos(theta).

Answer 3

That's right. that's the rule for odd functions f(-x) = -f(x)

Answer 4

Ah, right (: It became obvious to me it was the answer after I posted it Lol. Thank you