Recent content by hamadee

how to expand the squared using this form (a^2 + 2ab + b^2) ? 1/ (s^4 + 2s^2 + 1) then using partial fraction

hii guys i have a problem on simplifying this F(s) = X1(m1 s^2 + k) - KX2 0 = X2(m1 s^2 + k) - kx1 take x1 to have value x1= X2(m1 s^2 + k)/k F(s) = X2(m1 s^2 + k)/k . (m1 s^2 + k) - kX2 X2 [(m1 s^2 + k)^2 -k / k] now we cover m1 and k by 1 because in the question they have...

ohhh okay can you Explain it to me ?!

∫0^1 xe^(-x)^2 dx u=-x^2 du=-2x -1/2 ∫0 to -1 u du = -1/2 . u^2/2 = -1/2 . (-x^2)^2/2 ]0 to -1 tell me if this true or not

yes this is the integral :) I do not know anything about this question i tried a lot of thing but what i know that i should use u and du :)

hii everyone I got your forum from the Internet, and noted that you are cooperating with one another I hope to help me in question I would be grateful to you this is my question ∫0^1 xe^(-x)^2 dx please help me guys