THE QUESTION OF TRIGONOMETRY IS
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cot²@(sec²@-1)+sec²@(sin²@-1)/([email protected]+1)([email protected]+1)
=cot²@tan²@-sec²@(1-sin²@)/([email protected]+1)([email protected]+1)
=1-1/([email protected]+1)([email protected]+1)
=0
Answer:
refer to the attachment for the solution.