definite-integral

Question: If a curve $y=a\sqrt{x}+bx$ passes through the point (1, 2) and the area bounded by the curve, line $x=4$ and x-axis is 8 sq. unit, then



1) $a=3,\,b=-1$
2) $a=3,\,b=1$
3) $a=-3,\,b=1$
4) $a=-3,\,b=-1$
Solution: Explanation: No Explanation
Area bounded by region Volume and surface area of solids of revolution

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