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MathematicsDifferential EquationApplication (Mixing, Geometric, temp., trajectory)Medium2 minPYQ_2021
MathematicsMediumnumerical range

Letfxbe a differentiable function defined on0, 2such thatf'x=f'2-xfor allx0,2,f0=1andf2=e2.Then the value of02fxdxis

Options:

Answer:
B
Solution:

f'x=f'2-x

fx=-f2-x+c

put x=0

f0=-f2+c

c=f0+f2=1+e2

so, fx+f2-x=1+e2

I=02fxdx

I=02f2-xdx

2I=02fx+f2-xdx

2I=1+e202dx

I=1+e2

Stream:JEESubject:MathematicsTopic:Differential EquationSubtopic:Application (Mixing, Geometric, temp., trajectory)
2mℹ️ Source: PYQ_2021

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