Home » Classroom » JAMB Mathematics 2007 Question

Determine the value of int 0 frac pi 2 -2cos x ... - JAMB Mathematics 2007 Question

Determine the value of (\int_0 ^{\frac{\pi}{2}

}(-2cos x)dx)

A
-2
B
-1/2
C
-3
D
-3/2
Ask EduPadi AI...
Correct Option: A

(\int_0 ^{\frac{\pi}{2}}(-2cos x)dx = [-2sin x + c]_0 ^{\frac{\pi}{2}}\

=(-2sin\frac{\pi}{2}+c+2sin0-c)\

=-2sin90+c+2sin0-c\

=-2(1)+2(0)\

=-2)

Please share this, thanks:

#JAMB #JAMB

Add your answer

Notice: Please post responsibly.

No responses