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| 1. |
यदि ` e^(x) =(sqrt(1+t) -sqrt(1-t ))/(sqrt(1+t)+sqrt(1-t) ) ` व ` tan ""(y)/(2) =sqrt((1-t)/(1+t) ), t =(1)/(2) ` पर ` (dy)/(dx) =`A. `1//2`B. ` -1//2`C. ` 0`D. इनमें से कोई नहीं |
| Answer» Correct Answer - B | |