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cos38cos52-sin38sin52

Posted in Math, asked by syed, 6 years ago. 2854 hits.

-1

cos(A+B)=cosA.cosB-sinA.sinB

cos(38+52)=cos38.cos52-sin38.sin52

cos(38+52)=cos(90)=0.

Answer=0

ANURAG BHUYAN
ANURAG BHUYAN - 6 years ago
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