The Total solution for NCERT class 6-12
If sin-1 (2a/1 + a2) – cos-1(1 – b2/1+ b2) = tan-1(2x/1 – x2), then prove that x =(a – b)/ (1 + a b)
Given sin-1 (2a/1+ a2) – cos-1(1 – b2/1 + b2) = tan-1(2x/1– x2)
Hence, proved.