Angle 0 lies in the second quadrant, and sin 0=3/5

Unfortunately, you have not provided the instructions for this problem.

Also, " 0 " is "ZERO," so you may need to use the word "theta" to represent the angle.

I assume you want to find the cosine and tangent of this angle theta.

If sin theta = opp / hyp, or 3/5, then adj^2 + 3^2 = 5^2, or adj^2 = 16, or adj=plus or minus 4.

Thus, with sin theta = 3/5, and theta in the second quadrant, cos theta = -4/5 and tan theta = opp / adj = 3 / -4 = -3/4