Question

Can i have the answer for this question as soon as possible....

Answer 1

cosФ + sinФ=√2cosФ

=>sinФ=√2cosФ-cosФ

=>(√2-1)cosФ=sinФ-------------------------------------1.)

Now,

cosФ - sinФ=sinФ/(√2-1)-sinФ

                   ={sinФ-(√2-1)sinФ}/(√2-1)     {Taking L.C.M}

                   =(sinФ-√2sinФ+sinФ)/(√2-1)    

                   =(2sinФ-√2sinФ)/(√2-1)

                   =√2sinФ{√2-1}/(√2-1)

                  =√2sinФ

                  =R.H.S

Answer 2

Hope you get the SOLUTION
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