Question
_0^ / 4 x e^ x d x is equal to
BITSAT
Mathematics
Definite Integration
2023
BITSAT 2023 (Memory Based Paper 2)
BITSAT Mathematics Question (2023) — Solution
Options
- A. e+1
- B. e-1
- C. e
- D. -e
Answer
B. e-1
Step-by-step solution
Suppose, I= _0^ / 2 x e^ x d x Let x=t x d x=d t x 0 t 0 and x 2 t 1 So I= _0^1 e^t d t= [e^t ]_0^1=e-1
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