1.

Let f(x) be a non-negative, continuous and even function such that area bounded by x-axis ,y-axis & y = f(x) is equal to (x^(2)+x^(3)) sq. unitsAax ge 0, then

Answer»

`underset(r=1)OVERSET( N)sumf'(r )= 3n^(2)+5n AA n in N`
` underset(r=1)overset(n)sumf'(r ) = 6N^(2)+5n AA n in N`
`f(x) = 3x^(2)+2x AA x le0`
`f(x) = 3x^(2)-2x AAxle 0`

SOLUTION :N//A


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