wiz-icon
MyQuestionIcon
MyQuestionIcon
1
You visited us 1 times! Enjoying our articles? Unlock Full Access!
Question

If aa(|x|+|x2|)dx=22,(a>2) and [x] denotes the greatest integer x, then aa(x+[x])dx is equal to

Open in App
Solution

0a(2x+2)dx+20(x+2x)dx+a2(2x2)dx=22
(x22x)a0+(2x)20+(x22x)a2=22
a2+2a+4+a22a(44)=22
2a2=18a=3
Now 33(x+[x])dx=(33(x+[x])dx)=(33[x]dx),(33xdx=0)
=(321+0+1+2)=3

flag
Suggest Corrections
thumbs-up
0
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
Definite Integral as Limit of Sum
MATHEMATICS
Watch in App
Join BYJU'S Learning Program
CrossIcon