1
WB JEE 2011
Subjective
+2
-0

Prove that $$I = \int\limits_0^{\pi /2} {{{\sqrt {\sec x} } \over {\sqrt {\cos ecx} + \sqrt {\sec x} }}dx = {\pi \over 4}} $$

WB JEE Subjects
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Medical
NEET
Graduate Aptitude Test in Engineering
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CBSE
Class 12