A transverse harmonic wave on a string is described byy (x , t) = 3 . 0 sin ( 36 t + 0 . 0 18 x + (pi)/(4) ) where x and y are cm and t in s.The positive direction of x is from left to right .What is the initial phase at the origin ?

A transverse harmonic wave on a string is described byy (x , t) = 3 .

1.	A transverse harmonic wave on a string is described byy (x , t) = 3 . 0 sin ( 36 t + 0 . 0 18 x + (pi)/(4) ) where x and y are cm and t in s.The positive direction of x is from left to right .What is the initial phase at the origin ?
Answer» ANSWER :`PI// 4`;