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JEE Advanced Model Paper 8 with solutions for online practice

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Question : 48 of 84
 
Marks: +1, -0
Given that
y
∫
1
sec−1 x dx = λ and for (|y| ≥ 1)
if
−1
∫
−y
 {sec−1x−tan−1(√x2−1)} dx +
y
∫
‌
 {sec−1x−tan−1(√x2−1)} dx =
π (y - a) - bλ , then a + b = .....
  • Your Answer:
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