y1 = 2sin(3x 2t) & y2 = 3sin(3x 2t + /4). Find the expression for resultant displacement caused by superposition of the two waves.

• A. 3.6sin(2x-3t+3 /7)
• B. 4.63sin(3x-2t+3 /5)
• C. 3.6cos(3x-2t+3 /7)
• D. 4.63cos(3x-2t+3 /5)