Question

Out of the following functions, representing motion of a
particle, which represents SHM?
(A) y = sin⍵t - cos⍵t
(B) y = sin3 ⍵t
(C) y 5cos (3π/4 - 3⍵t)
(D) y = 1+ ⍵t + ⍵²t²
(a) Only (A)
(b) Only (D) does not represent SHM
(c) Only (A) and (C)
(d) Only (A) and (B)

Answer 1

Answer:

I don't know the answers it so difficult