Answered: 1. The expression sin(x +y) +sin(x-y) is equal to A. 2 sinx siny B. 2 sinx cosy C. 2 cosx siny D. 2cos.xcos y | bartleby
Answered: 1. The expression sin(x +y) +sin(x-y) is equal to A. 2 sinx s…
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Answered: If sinx = siny = a and cosx = cosy = b,then cos(x-y) is | bartleby
Answered: If sinx = siny = a and cosx = cosy = b,then cos(x-y) is | …
Nov 19, 2020
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SOLVED:Based on the addition formulas: sin(x y)=sinx cosy cosx siny sin(x-y)=sinx cosy-cosx siny cos(x y)=cosx cosy-sinx siny cos(x-y)=cosx cosy sinx siny Calculate cos(π/ 3), given that sin(π/ 6)=1 / 2 and cos(π/ 6)=√(3) / 2 .
SOLVED:Based on the addition formulas: sin(x y)=sinx cosy cosx …
Jun 20, 2021
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