Find the area enclosed between the curve y = x2 + 2, X-axis, x = 3 and x = 4
The area region enclosed by the curves y=x2+2y=x^2+2y=x2+2 , x-axis and x=4 is given by
area=∫34ydx=∫34(x2+2)dxarea= ∫_3^4ydx=∫_3^4(x^2+2)dxarea=∫34ydx=∫34(x2+2)dx
=[x3/3+2x]34=[x^3/3+2x]_3^4=[x3/3+2x]34
=[43/3+2(4)]−[33/3+2(4)]=[4^3/3+2(4)]-[3^3/3+2(4)]=[43/3+2(4)]−[33/3+2(4)]
=88/3−15=88/3-15=88/3−15
=14.333 square units of length
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