en

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

Popular >

y^{''}+81y=0

Solution

y^{^{''}} + 81 y = 0

Solution

y = c_{1} cos (9 t) + c_{2} sin (9 t)

Solution steps

y^{''} (t) + 81 y = 0

Solve linear ODE:

y = c_{1} cos (9 t) + c_{2} sin (9 t)

y = c_{1} cos (9 t) + c_{2} sin (9 t)

Popular Examples

inverse oflaplace (60)/(2-5s)inverse laplace

\frac{60}{2 - 5 s}

sum from k=1 to infinity of 1/(k^{1+1/k)}

k = 1 \sum \infty \frac{1}{k ^{1 + \frac{1}{k}}}

derivative of f(x)=x^{5/2}derivative of

f (x) = x^{\frac{5}{2}}

limit as x approaches-1 of x(x+3)

x \to - 1 lim (x (x + 3))

sum from n=0 to infinity of (2/7)^n

n = 0 \sum \infty (\frac{2}{7})^{n}

Frequently Asked Questions (FAQ)

What is the solution for y^{''}+81y=0 ?
The solution for y^{''}+81y=0 is y=c_{1}cos(9t)+c_{2}sin(9t)