कठिन
यदि x=3+sqrt(10), तो x - 1/x है:
Explanation
Explanation
चूंकि x=3+sqrt(10), 1/x = 1/(3+sqrt(10)) = (3-sqrt(10))/((3)^2-10) = (3-sqrt(10))/(-1) = sqrt(10)-3। इसलिए x - 1/x = (3+sqrt(10)) - (sqrt(10)-3) = 6।
PRO TIP
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