Question

sin(-150°) = -sin30° true or false?

Answer 1

Correct

Answer 2

Flase

Answer 3

False*

Answer 4

The identity \( \sin(-\theta) = -\sin(\theta) \)

Answer 5

is that how you determine?

Answer 6

Dude plug it into a calculator

Answer 7

its not an identity its simply asking if they equal each other and even if it was an identity it still would be false

Answer 8

aren't they both equal to -1/2?

Answer 9

No

Answer 10

Here http://www.sosmath.com/trig/Trig5/trig5/trig5.html

The answer is True

Answer 11

And it is an identity

Answer 12

\[\sin (-150)=.714 -\sin (30)=.9\]

Answer 13

Its False

Answer 14

Nixy is correct.

Answer 15

it is in radian

Answer 16

I mean to degrees

Answer 17

The question is asking for degrees...

Answer 18

We are working with degrees

Answer 19

I am correct. It is an even odd identity and it is True.

Answer 20

confirm

Answer 21

Thank you everyone

Answer 22

YW