(cos? A - 1) (cot? A + 1) =-1
Answers
Answered by
5
Answer:
(cos²A-1)(cot²A+1)
=(-sin²A)(cosec²A)
=-1
Answered by
0
Answer:
(cos²A-1)(cot²A+1)
= -sin²A cosec²A
= -sin²A .1/sin²A
= -1
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