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If a curve y = asqrt(x)+bx passes throug...

If a curve `y = asqrt(x)+bx` passes through the point (1,2) and the area bounded by the curve, line x = 4 and X-axis is 8 sq units, then

A

a=3, b=-1

B

a=3, b=1

C

a=-3, b=1

D

a=-3, b=-1

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The correct Answer is:
A
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