Ask a New Question

Question

For solving initial value problems is there any way to do it without a calculator?

For example: f"(x)=12x^2-6x+8, f(-1)=5 f'(-1)=-21
17 years ago

Answers

drwls
Yes, just integrate the f''(x) twice, and use the values of f' and f at a particular x value (x=-1 in this case) for the constants.
I will do the first step for you.

f'(x) = 4x^3/3 -3x^2 +8x + C
f'(-1) = -4/3 -3 -8 + C = 5
C = 17 1/3

f(x) = x^4/3 -x^3 + 4x^2 + 17 1/3 x = C'
Use f'(-1) = -21 to solve for C'
17 years ago

Related Questions

I need help solving these problems. I tried but my teacher did not teach it to us so it is very diff... I am lost on solving this problem 3x+8=8x-5x+10 I know the next step is 3x+8=3x+10 I am lost aft... solving the initial value problem by separation of variables dy/dx=(4(sqrt of y)lnx))/x, y(e)=9 I NEED HELP SOLVING THIS PROBLEM 3.5(.4)/2.6 + 2.6/.4= PLEASE EXPLAIN AND SHOW HOW TO S... I need help solving these problems by using the substitution problem 2x-3y=16 5x+2y=21 I have tried solving this problem over and over but I'm still not sure with my answer. The question... I need help solving these problems y=-0.4x^2+8.3x+4.3 I got 0.52 h=-16t^2+149t+30 I got 640.... Diagnosing is solving the problem, and troubleshooting is figuring out what the problem is. True... Lesson 7: Solving Percent Problems Using Equations Math 7 A Unit 7: Percents I don't understand... Six ways of solving civic problems in society Six ways of solving civic problems in society....
Ask a New Question
Archives Contact Us Privacy Policy Terms of Use