Q. 54.0( 4 Votes )
Evaluate of each of the following integral:
Answer :
Let us assume 
.....equation 1
By property, we know that 
Thus
We know tan(– x) = – tan x
......equation 2
Adding equations 1 and equation 2, we get,
We know
Trigonometric identity sec2 ɵ
We know
Thus
We know
Thus
We know
b and a being the upper and lower limits respectively.
Since 
Thus
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