146the value of f(4) is (5e^4-e^-4)/2
Nandikesh Singh The answer is correct but please post the solution.Upvote·0· Reply ·2014-07-23 03:49:34
3 Answers
146146here i took y=e^mx and then after finding ihe values of m we get the answer
Swastik Haldar why did you take y as e^mx ?
1357f''(x)=f(x)
will have a solution as
f(x)=Aex+Be-x
f(0)=A+B=2
f'(0)=A-B=3
A=5/2, B=-1/2
f(4)=(5e4-e-4)/2
- Nandikesh Singh sir, how we are getting the solution as
f(x)=Ae^(x)+Be^(-x)