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Aleonysh [2.5K]
3 years ago
6

Use differentiation to show that the given function is a solution of the equation for all values of the constants. (Enter your a

nswers in terms of x.) equation: x'' + x = 2et, function x = C1 sin(t) + C2 cos(t) + et
Mathematics
1 answer:
Katena32 [7]3 years ago
8 0

Answer with Step-by-step explanation:

We are given that

DE

x''+x=2e^t

Function:x=C_1sint+C_2cost+e^t

We have to show that given function is  a solution of the equation for all values of the constants.

If given function is  solution of DE then it satisfied the given DE.

Differentiate  function w.r.t.t

x'=C_1cost-C_2sint+e^t

Again differentiate w.r.t. t

x''=-C_1sint-C_2cost+e^t

Substitute the values in the given DE

-C_1sint-C_2cost+e^t+C_1sint+C_2cost+e^t=2e^t

LHS=RHS

Given function satisfied the given DE.Therefore, it is solution of given DE for all values of the constants.

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