Find z 1 z 2 if z 1 = 3(cos37° + isin37°) and z 2 = 2/3 (cos53° + isin53°). 2 2i 2 + i 1 + 2i

The ksp expression for the system pbcl2(s) pb+2(aq) + 2 cl-(aq) is: [pbc12][pb+2][2cl-] [pb+2][cl-]2 [pb+2][2cl-]2 [pbcl2][pb+2][cl-]2 [pb+2][2cl-]2[pbcl2]

Find the exact value of each of the following. in each case, show your work and explain the steps you take to find the value. (a) sin 17π/6 (b) tan 13π/4 (c) sec 11π/3

True or false look at the picture pls : /