The displacement of a particle varies according to the relation $x = 4(\cos\pi t + \sin\pi t)$. The amplitude of the particle is (1) $-4$ (2) $4$ (3) $4\sqrt{2}$ (4) $8$
The displacement of a particle varies according to the relation $x = 4(\cos\pi t + \sin\pi t)$. The amplitude of the particle is\\
(1) $-4$\\
(2) $4$\\
(3) $4\sqrt{2}$\\
(4) $8$