if-y-sin2x-is-the-solution-of-differintial-equation-d-2-y-dx-2-4y-k-then-the-k-is-

Question Number 101558 by mhmd last updated on 03/Jul/20

i f y = s i n 2 x i s t h e s o l u t i o n o f d i f f e r i n t i a l e q u a t i o n

\frac{d^{2} y}{{d x}^{2}} + 4 y = k t h e n t h e k i s \dots \dots .

Answered by bemath last updated on 03/Jul/20

y^{'} = 2 \cos 2 x \Rightarrow y^{″} = - 4 \sin 2 x

y^{″} + 4 y = - 4 \sin 2 x + 4 \sin 2 x = 0 = k ★

Commented by mhmd last updated on 03/Jul/20

t h a n k y o u s i r

Facebook Tweet Pin