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q= (z+px)^2 solve by charpit's method.

Calculate the Laplace transform of

β€’ (t) integral from (0 to t) (T)e^(T)dT


Find the general solution for the differential equation


-y"=6x + xe^x


(a) using method of undetermined coefficients


(b) using variation of parameters


prove that a neccessary and sufficient condition Bor a surface to be dovelopable us that its Gaussian cuivatuie alpha9 .

(π‘₯𝑦2+ 𝑦 βˆ’ π‘₯)𝑑π‘₯ + π‘₯(π‘₯𝑦 + 1)𝑑𝑦 = 0


A particle falls under constant gravity through a distance x, starting from rest. A small resistance per unit mass equal to k times the square of the velocity,acts on the particle. Show that the kinetic energy acquired is approximately mgx(1-kx), neglecting higher powers of k.

Find complete integral of 2p1x2x3 + 3p2x3^2 + P2 ^2 P3 = 0

Β An RCL circuit connected in series has R = 10 ohms, C = 10^2 farad, L = 1.5 henry, and an applied voltage E = 12 volts. Assuming no initial current and no initial charge at t = 0 when the voltage is first applied, find the subsequent current in the system.


Solve the equation (π‘₯ + 𝑠𝑖𝑛𝑦)𝑑π‘₯ + (𝑦2 + π‘₯π‘π‘œπ‘ π‘¦)𝑑𝑦 = 0


Find the orthogonal trajectories of the following curves (where a is a parameter). r = a(1 + sin ΞΈ)

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