M = |x – 22| + |x + 12|.
(1/3×22/7×5×5×12)cm³
$\sqrt{2}$ is irrational
prove that $\sqrt{5}$ is irrational
preve that $\sqrt{5}$ is irrational
(450+280)^2-(450-280)^2/(450 x 280)
(450+280)^2 - (450-280)^2/(450 x 280)
Solve by the method of variation of parameter (D^2+a^2)y=tanax.
Solveby the m
Find the directional derivative of varphi = x ^ 2 - 2y ^ 2 + 4z ^ 2 at the point P(1, 1, - 1) in the at direction of vec F = 2i + ...
