4 years ago

20 POINTS PLEASE HELP!!

Mathematics

1 answer:

soldi70 [24.7K]4 years ago

4 0

trigonometric functions state that cosine functions are even so that automatically rules out the first two options.

sine functions are odd so the last two are right.

odd functions: f(-x)=-f(x)

so the sine would be: sin(-x)=-sin(x)

the third option should be the right answer

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*20 POINTS PLEASE HELP!!*

20 POINTS PLEASE HELP!!