Home » Classroom » JAMB Mathematics 1994 Question

Evaluate int 1 -1 2x 1 2dx - JAMB Mathematics 1994 Question

Evaluate (\int^{1}_{-1})(2x + 1)2dx

A
3\(\frac{2}{3}\)
B
4
C
4\(\frac{1}{3}\)
D
4\(\frac{2}{3}\)
Ask EduPadi AI for a Detailed Answer
Correct Option: D

(\int^{1}_{-1})(2x + 1)2dx

= (\int^{1}_{-1})(4x2 + 4x + 1)dx

= (\int^{1}_{-1})[(\frac{4x^3}{3}) + 2x2 + c]

= [(\frac{4}{3}) + 3 + c] - [4 + (\frac{1}{3}) + c]

= (\frac{8}{3}) + 3 + -1 - C

= (\frac{8}{3}) + 2

= (\frac{14}{3})

= (\frac{42}{3})

Please share this, thanks:

#JAMB #JAMB

Add your answer

Notice: Please post responsibly.

No responses