Question

If y=2x +4/x +,then x²(d²y)/dx²+x(dy)/dx-y yields
(2) 3
(b) 1
(c)0
(d) 4​

Answer 1

Answer:

Step-by-step explanation:

y = 2x + 4/x

dy/dx = 2 - 4/x^2

d²y/dx² = 0 + 8/x^3

Now putting in eqn,

x²(d²y)/dx² = x^2 ( 8/x^3 ) = 8/x

x(dy)/dx = x ( 2 - 4/x^2 ) = 2x - 4/x

x²(d²y)/dx²+x(dy)/dx-y = 2x - 4/x + 8/x - 2x - 4/x = 0

Your answer is (c) 0

Hope it helps :-)

Answer 2

Answer:

The answer is 0

i hope it helps you