Question

solve question number 30

Answer 1

here is your answer

hope it helps you

Answer 2

Step-by-step explanation:

let theta=@

LHS:

=(1+1/cos@)/(1/cos@)

=cos@+1 or 1+cos@

RHS:

=sin^2@/1-cos@

=1-cos^2@/1-cos@

=(1+cos@)(1-cos@)/1-cos@

=1+cos@

RHS=LHS

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