1.

1+ sin 2x + cos2x / cOS X + sin x= 2 cos x​

Answer»

ANSWER:

1 +  \sin(2x) +  \cos(2x)  \div  \sin(x)  +  \cos(x)

Step-by-step explanation:

1+2sinxcosx+cos²x–sin²x/cosx+sinx

=> 1-sin²x+cos²x+2sinxcosx/cosx+sinx

=>2cos²x+2sinxcosx/cosx+sinx

=>2COSX(cosx+sinx)/cosx+sinx

=>2cosx. ....(PROVED)



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