cosec A /
cosec A-1
+
cosec A
cosec A +1 =2secA
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Answered by
1
Step-by-step explanation:
cosecA/cosecA-1 + cosecA/cosecA+1
=cosecA(cosecA+1+cosecA-1/cosec²A-1)
=cosecA(2cosecA/cot²A)
=2cosec²A/cot²A
=2.1/sin²A.(sin²A/cos²A)
=2/cos²A
=2sec²A
Answered by
2
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