Math, asked by anujgargsp925dq, 1 year ago

fast
class 10
chapter 8or 9
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Answered by adityakumar5155
0

q=sec+cosec

p=sin+cos

solution,

q(p²-1)=2p

sec+cosec[(sin+cos)²-(sin²+cos²)=2(sin+cos)          [1=sin²+cos²]

sec+cosec[(sin²+cos²+2sin.cos-sin²-cos²)]=2(sin+cos)

sec+cosec(2sin.cos)=2(sin+cos)

sec(2sin.cos)+cosec(2sin.cos)=2(sin+cos)

(1/cos)(2sin.cos)+(1/sin)(2sin.cos)=2(sin+cos)

2sin+2cos=2(sin+cos)

2(sin+cos)=2(sin+cos)

LHS=RHS

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