aCosD.bSinD =c.Find the vale of SinD +CosD +
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sind cosd= c/ab.
let p= sind+ cosd
p^2= 1 + 2sind × cosd
p= root( 1+ (2c/ab))
let p= sind+ cosd
p^2= 1 + 2sind × cosd
p= root( 1+ (2c/ab))
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