Question

help me finding L{tsin3t}

Answer 1

may i ask what is L? is it just a constant? hope u could rewrite the question properly

Answer 2

can u first find L{sin 3t} ??

Answer 3

Laplace = L

Answer 4

do u know L {sin 3t} ? @MadMike

Answer 5

yea.!! \[a \div s ^{2} \times a^2\]

Answer 6

srry not x its +

Answer 7

\[\frac{a}{s^2+a^2}\]

Answer 8

now tell me how to fine {t sin2t}

Answer 9

@hartnn

Answer 10

right ,so now there is a property,let,f(t)=sin3t,then F(s)=a/(s^2+a^2)
L{t.f(t)}=-(derivative w.r.t s of F(s))

Answer 11

so whts the derivative of 3/s^2 + 3^2

Answer 12

u also need help in taking that derivative?

Answer 13

yea i m noob

Answer 14

please b quick