Evaluate int 2 1 x 2 - 4x dx - JAMB Mathematics 2012 Question
Evaluate \(\int^2_1(x^2 - 4x)dx\)
A
\(\frac{11}{3}\)
B
\(\frac{3}{11}\)
C
\(-\frac{3}{11}\)
D
\(-\frac{11}{3}\)
correct option: d
(\int^2_1(x^2 - 4x)dx)
((\frac{x^3}{3} - \frac{4x^2}{2}))
substituting integrate values
([\frac{8}{3} - \frac{4 \times 4}{2}] - [\frac{1}{2} - 2])
= (-\frac{11}{3})
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