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Question : 71 of 160
Marks:
+1,
-0
Solution:
Let
I=∫ I=∫‌dx Let
x3=sin2t 3x2‌dx=2sint‌cos‌t‌dt ⇒I=‌∫ =‌∫‌sin‌t‌cos‌t‌dt =‌∫cosec‌t‌dt =‌log|cosec‌t−cot‌t|+C =‌log‌||+C =‌log‌||+C =‌log‌||2+C Here,
f(x)=||2 f()=||2 =()2=(√8−√7)2 From option (a)
:()×() =(√8−√7)2
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