not sure what this is asking

[severe yacht]

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[languid ivy]

Note that sine is odd, while cosine is even.

[sullen ibex]

i remember my teacher saying that but forgot what that did

[formal pilot]

for even functions, f(-x) = f(x)

for odd functions, f(-x) = -f(x)

While it seems to be required by the format here, it is completely irrelevant to proving the identity

[sullen ibex]

does that mean it would be
sin(−𝜃) -> (sin(−𝜃)) -> -sin(θ)
sec(−𝜃) -> (1/cos(-θ)) -> (1/cos(θ))
cot(−𝜃) -> (cos(-θ)/sin(-θ))->(cos(θ)/-sin(θ))

=1

[languid ivy]

Yes.

[languid ivy]

Hm, yeah, now that I think about it, it isn't really required.

Still, if I was given this exercise without any context, I would've also applied the parity properties first 😅

[sullen ibex]

this website is weird

well thanks again! ill probably be here a lot

+close