1.

सिद्ध करें कि: `tan^(-1)sqrt(x) = (1)/(2) cos^(-1)((1-x)/(1+x)), x in[0, 1]`

Answer» `tan^(-1)sqrt(x) = (1)/(2)(2 tan^(-1)sqrt(x))`
` = (1)/(2) cos^(-1)((1-x)/(1+x))[because tan^(-1) x = cos^(-1)""(1-x^(2))/(1+x^(2)),xge0]`


Discussion

No Comment Found