2018
Mathematics
JAMB
Evaluate ∫21 5/x dx
A.
1.47
B.
2.67
C.
3.23
D.
3.47
Correct Answer: 3.47
Explanation
∫5/x dx = 5 ∫1/x = 5Inx Since the integral of 1/x is Inx ∫2 1 ∫ 5/x dx = 5 dx = 5 (In<2 – InIn1) = 3.4657 = 3.47
∫5/x dx = 5 ∫1/x = 5Inx Since the integral of 1/x is Inx ∫2 1 ∫ 5/x dx = 5 dx = 5 (In<2 – InIn1) = 3.4657 = 3.47THIS WEEK's
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