`int (2x)/sqrt(x^(2)-x-1)` dx का मान ज्ञात कीजिये|

Explanation

अतः `=log [(x-1/2) + sqrt(x^(2)-x-1)] +c_(2)`
अतः `I = 2sqrt(x^(2)-x-1) = log[(x-1/2) + sqrt(x^(2) -x-1)] +c_(1) + c_(2)`.