Question

prove that sec(90-theta) cosec theta -tan(90-theta)cot theta +cos^2 25 +cos^2 65/3tan 27. tan63

Answer 1

Answer:

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Answer 2

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Cosecant theta is 1 over y and y is sine theta. So cosecant theta is the reciprocal of sine. Tangent, we've already done this one, tangent is sine theta over cosine theta. Cotangent because it's defined as x over y is cosine theta over sine theta.