1.

If `A=tan^(-1) x ,x in R` then the value of sin 2A isA. `(2x)/(1-x^(2))`B. `(2x)/sqrt(1-x^(2))`C. `(2x)/(1+x^(2))`D. `(1-x^(2))/(1+x^(2))`

Answer» Correct Answer - C


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