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if asinx+bcos(c+x)+bcos(c-x)=alpha ,alpha greater than a , then the minimum value of mode cosc is:


Nithin R 6th Feb, 2018
Answer (1)
NilayShrimali 3rd Mar, 2018

If

a sin x + b cos ( x + θ ) + b cos ( x θ ) =
asin⁡x+bcos⁡(x+θ)+bcos⁡(x−θ)=d

then what is the minimum value of | cos θ | |cos⁡θ| is given:

d 2 a 2 2 | b |

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