2f(x)+f(2/2-x)=90x , find f(x)
5:53
In vector space R^3, express vector (1,-2,5) linear combination of vector(1,1,1), (1,2,3),(2, -1,1)
20:37
Evaluate ∫∫dxdy/(1+e^y)√a^2-x^2-y^2 from x=0 to x=a , from y=0 to y=√a^2-x^2.
13:47
Hardy's Integral
11:08
Solve dy/dx+y/x=y^2
1:11
In plane triangle, finds the maximum value of cosAcosBcosC
19:05
Evaluate ∫F.dr ; where F=(x^2+y^2)i-2xyj ; curve C is the rectangle in xy-plane bounded by y=0 , x=a
6:56
Some simple tests for part of C.F. of second order differential equations of d^2y/dx^2+Pdy/dx+Qy=R.
28:29