trig

kiranbharya

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the terminal arm of angle theta passes through the point (x,y) in quadrant 1. Leaving your answers in terms of x and y, determine the following:
a) csc(theta + PI)
b) sec (theta-pi/2)
c) cot (theta + pi/2)
 

tkhunny

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What's your plan, here?

+pi = rotation of 180º -- Doesn't change the distance from the origin.

What does sine do under this rotation? What does cosine do?
 

Subhotosh Khan

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