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Multiple Choice Questions
1. sin (45 + θ) - cos (45 - θ) is
(A): 2 sin θ
(B): 1
(C): 2 cos θ
(D): 0
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By: anil on 05 May 2019 01.50 am
Expression : sin (45 + θ) - cos (45 - θ) = $$sin [90 - (45 - heta)] - cos (45 - heta)$$ $$ecause cos (90 - heta) = sin heta$$ = $$cos (45 - heta) - cos (45 - heta)$$ = 0
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SSC CGL 2012 Tier 1 8 July NZ Evening II
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