EVALUATING THE DEFINITE INTEGRALS

If F(x)  = ∫f(x) dx then the definite integral of f(x) on the interval a ≤ x ≤ b is

If f(x) ≥ 0 on the interval a ≤ x ≤ b then the definite integral 

will give the area under the curve above the x-axis from x = a to x = b

area-under-the-curve-above-x-axis

Problem 1 :

Solution :

Problem 2 :

Solution :

Problem 3 :

Solution :

= 9 + 12 - 1 - 4

= 21 - 5

= 16

Problem 4 :

Solution :

= 3 + 9

= 12

Problem 5 :

Solution :

= 12 - 18

= -6

Problem 6 :

Solution :

Problem 7 :

Solution :

Problem 8 :

Solution :

Problem 9 :

Solution :

Problem 10 :

Solution :

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