Evaluate:
Please evaluate this ........
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manika9675:
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Hey this answer your answer
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(cosec13/sec 77)-(cot20/tan70)
(cosec(90-77)/sec77)-(cot(90-70)/tan70)
(sec77/sec77)-(tan70/tan70)
1-1
0
(cosec(90-77)/sec77)-(cot(90-70)/tan70)
(sec77/sec77)-(tan70/tan70)
1-1
0
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