AP EAMCET202418 May 2024Morning ShiftMathematicsDefinite IntegrationActual
_ 4 ^ 5 e^ 2 x +e^x e^ 2 x -5 e^x+6 d x=
Options
- A( 64 9 )
- B( 256 81 )
- C( 32 3 )
- D( 128 27 )
Correct answer
D. ( 128 27 )
Step-by-step solution
Let I = _ 4 ^ 5 e^ 2 x +e^x e^ 2 x -5 e^x+6 d x= _ 4 ^ 5 e^x (e^x+1 ) (e^x-3 ) (e^x-2 ) d x aligned & Let e ^x=t e ^x d x=d t & I = ₄^5 t+1 (t-3)(t-2) d t aligned = ₄^5 ( 4 t-3 - 3 t-2 ) d t=[4 (t-3)-3 (t-2)]₄^5 aligned & =4 2-3 3-4 1+3 2 & =7 2-3 3= ( 128 27 ) aligned