In a triangle XYZ, if < XYZ is 60º, XY = 3cm, and YZ = 4cm, calculate the length of the side XZ.
\(\frac{d}{dx}\) cos(3x\(^2\) - 2x) is equal to
Integrate \(\frac{1}{x}\) + cos x with respect to x
If \(y = x(x^4 + x + 1)\), evaluate \(\int \limits_{0} ^{1} y \mathrm d x\).
