How do you convert #y = sin (300t)# into a cosine function? Trigonometry Graphing Trigonometric Functions Translating Sine and Cosine Functions 1 Answer George C. May 17, 2015 #y = sin(300t) = cos(300t-pi/2)# Is that what you meant? Answer link Related questions How do you graph sine and cosine functions when it is translated? How do you graph #y=sin ( x -frac{\pi}{2} )#? How do you draw a sketch of #y = 1 + cos (x - pi)# How do you shift and graph #y=-3+sinx#? How do you graph #y=3sin(1/3x+ pi/2)-2#? How do you graph #1/2sin(x-pi)#? How do you graph #-sinx+2#? How do you graph #y=3sin(1/2)x#? How do you graph #y=-2cos((pix)/3)#? How do you graph #y = (1/2)sin(x - pi)#? See all questions in Translating Sine and Cosine Functions Impact of this question 2540 views around the world You can reuse this answer Creative Commons License