Hi, I would really appriciate some help with this question. I am confused about how to solve it. Thank you so much!!

Question: Prove the following algebraically:

sec x - sin x tan x= cos x

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#### e^(i*pi)

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Hi, I would really appriciate some help with this question. I am confused about how to solve it. Thank you so much!!

Question: Prove the following algebraically:

sec x - sin x tan x= cos x
$$\displaystyle \frac{1}{\cos(x)} - \frac{\sin^2(x)}{\cos(x)} = \frac{1-\sin^2(x)}{\cos(x)}$$

Use the Pythagorean Identity to simplify