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If An=int0^(pi/2)(sin(2n-1)x)/(sinx)dx ,...

If `A_n=int_0^(pi/2)(sin(2n-1)x)/(sinx)dx ,B_n=int_0^(pi/2)((sinn x)/(sinx))^2 dx` for `n inN `, Then (A) `A_(n+1)=A_n` (B) `B_(n+1)=B_n` (C) `A_(n+1)-A_n=B_(n+1)` (D) `B_(n+1)-B_n=A_(n+1)`

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