if asinx+bcos(c+x)+bcos(c-x)=alpha ,alpha greater than a , then the minimum value of mode cosc is:
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If
asinx+bcos(x+θ)+bcos(x−θ)=d
then what is the minimum value of | cos θ | |cosθ| is given:
d 2 − a 2 − − − − − − √ 2 | b |
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