Ts EamcetDifferentiationTG EAPCET 2024 (Online) 10th May Morning ShiftMCQ+1 / -02024If $y=a \cos 3 x+b e^{-x}$, then $y^{\prime \prime}(3 \sin 3 x-\cos 3 x)=$A$10 y^{\prime} \sin 3 x+3 y(\sin 3 x+3 \cos 3 x)$B$10 y^{\prime} \cos 3 x+3 y(\sin 3 x+3 \cos 3 x)$C$10 y \cos 3 x+3 y(\cos 3 x+3 \sin 3 x)$D$10 y^{\prime} \cos 3 x+3 y(\sin 3 x-3 \cos 3 x)$Check AnswerClear SelectionReveal AnswerShow Explanation