1.

Prove that(i) tan-11-x22x+cot-11-x22x=π2(ii) sintan-11-x22x+cos-11-x22x=1

Answer» Prove that

(i) tan-11-x22x+cot-11-x22x=π2



(ii) sintan-11-x22x+cos-11-x22x=1


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