SSC CHSL 2014 · Question 157 of 209
2 2 + q + q 1 tan 1 cot 2 2 q q tan cot + = 2 2 q q sec cosec = sin2q + cos2q = 1
Source: SSC CHSL Solved Paper 16-11-2014 (Disha Publications) · reliable-secondary
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