Question

1 X (b) If cosx =- and 1 does not lie in 3rd quadrant, then find cos 3

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Answer 1

Answer:

Please write question properly.

I'm not able to understand!!!!!!!!

Answer 2

Answer:

cosecx=1/sinx

1/sinx*cosx=cotx

cotx=-1=135 degree or 315 degree = x

hence it may lie at 3 or 4

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