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Question : 9
Total: 29
Evaluate : ∫
dx
Solution:
Given I = ∫
dx
I =
dx ... (Since cos 2x = c o s 2 x − s i n 2 x )
I = ∫
dx
I = ∫s e c 2 x dx
I = tan x + C
I =
I = ∫
I = ∫
I = tan x + C
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