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Prove that :- a) 4(sin^-1 1/√10 + cos^-1 2/√5) = pib) cot^-1 9 + cosec^-1 √41/4 = pi/4

Prove that :- a) 4(sin^-1 1/√10 + cos^-1 2/√5) = pib) cot^-1 9 + cosec^-1 √41/4 = pi/4

Grade:12th pass

1 Answers

Deepak Kumar Shringi
askIITians Faculty 4405 Points
3 years ago
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