use the substitution formula to evaluate the integral
3cos^(2)xsinxdx when x=pi/3 to 2pi
i got: -21/8???

Question

use the substitution formula to evaluate the integral
3cos^(2)xsinxdx when x=pi/3 to 2pi
i got: -21/8???

experimentx · Answer

try using integration by parts  ... (and substitution for integrating trigonometric part)

experimentx · Answer

also you can verify the result from wolfram!!

anonymous · Answer

I did try to use wolfram..but it gave me something different..

experimentx · Answer

experimentx · Answer

anonymous · Answer

oh my! how did you get that...? i got like -6.0818 or something..