Cos alpha plus cos Nita is equal to zero is equal to sin alpha plus sin Nita then minus cos (alpha plus bita

Question

Pradeep Tangirala · Answer

Let alpha = x....and beta = y... Now given that...cosx + cosy =0 and sinx +siny =0 So....cosx=-cosy and sinx=-siny... Now.. -cos(x+y)= -[cosx.cosy - sinx.siny] Now...on solving you will get cos*2x - sin*2x= cos2x Or Cos*2y -sin*2y = cos2y......

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Cos alpha plus cos Nita is equal to zero is equal to sin alpha plus sin Nita then minus cos (alpha plus bita

Cos alpha plus cos Nita is equal to zero is equal to sin alpha plus sin Nita then minus cos (alpha plus bita

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