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यदि sec A -tan A =x हो तो tan A का मान निम्नलिखित में कौन सा हैA. `(x+(1)/(x))`B. `(x-(1)/(x))`C. `1/2(x+(1)/(x))`D. `1/2(x-(1)/(x))`

Answer» Correct Answer - C


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