Definite IntegrationHard
Question
If the value of the integral 
dx is α, then the value of 
dx is -
dx is α, then the value of dx is -Options
A.e4 - e - α
B.2e4 - e - α
C.2(e4 - e) - α
D.2e4 - 1 - α
Solution
Given 
dx = α
Now I =
dx = 
Let I1 =
[Put x = et2 so dx = et2 2tdt]
=
dt = α
∴ I = 2e4 - e - α
dx = α Now I =
dx = Let I1 =
[Put x = et2 so dx = et2 2tdt]=
dt = α∴ I = 2e4 - e - α
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