The question reads:

Solve triangleABCifA= 75°,a= 5, andb= 7.

a)B= 43.6°,C= 61.4°,c= 6.4

b)B= 136.4°,C= 31.6°,c= 2.7

c)B= 46.4°,C= 58.6°,c= 4.4

d) no solution

First, I try to solve for angle B:

Undefined

So is the answer "No Solution"? Or, did I make a mistake?