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MathematicsDefinite IntegrationDerivatives (Newton- Leibnitz)Easy2 minPYQ_2019
MathematicsEasysingle choice

Letf:RRbe a continuous and differentiable function such thatf2=6andf'2=148. If6f(x)4t3dt=x-2gx,thenlimx2gxis equal to

Options:

Answer:
B
Solution:

limx2gx=limx26fx4t3dtx-2      00 form.

By using L'Hospital rule
=limx24.f3(x)f'x1
=4f32f'2=4×6×6×6×148=18.

Stream:JEESubject:MathematicsTopic:Definite IntegrationSubtopic:Derivatives (Newton- Leibnitz)
2mℹ️ Source: PYQ_2019

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