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Question : 4 of 89
Marks:
+1,
-0
Solution:
‌(√tan‌x+√cot‌x)‌dx‌=∫(√tan‌x+‌)‌dx‌=∫‌‌dxLet
u=√tan‌x, then
u2=tan‌x and
2udu‌= sec2x‌dx‌=(1+tan2x)‌dx‌=(1+u4)‌dx‌=∫‌⋅‌du‌=∫‌du=∫‌du‌=∫‌duAgain, Let
v=u−‌⇒‌‌dv‌=(1+‌)du‌=∫‌dv=∫‌dv‌=∫‌dv‌=tan−1(‌)⋅√2+Cwhere
c= constant
‌=√2tan−1(‌)+C‌=√2tan−1(‌)+C‌=√2tan−1(‌| tan‌x−1 |
| √2‌tan‌x |
)+C
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