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What is the value of (tanθ cosecθ)2 -(sinθ secθ)2(a) -1(b) 0(c) 1(d) 2 |
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Answer» Correct answer is: (c) 1 (tanθcosecθ)2 -(sinθsecθ)2 =tan2θcosec2θ-sin2θsec2θ =(sin2θ/cos2θ)x1/ sin2θ - sin2θx1/cos2θ =(1- sin2Ɵ)/ cos2Ɵ= cos2Ɵ/ cos2Ɵ =1 |
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