can someone tell me the steps of answering this problem Sin(B+15)=Cos(2B+30) the answer is B=15 but im not sure how to get that answer, i thought u set B+15=2B+30 but i end up getting B= -15 when i do that.

You should know the basic relation between sine and cosine is
sin(x)=cos(90 -x) Thus
B+15 = 90 - (2B+30) so
3B +45 = 90 or
3B = 45 and B =45/3
No, you cannot just set them equal to each other.

Similar Questions
  1. factor the equation: -6x^2+15x+36please show me the steps in answering this problem. thanksss..)
    1. answers icon 2 answers
    1. answers icon 1 answer
    1. answers icon 1 answer
  2. PROBLEM 5Suppose we ran m steps of Grover's algorithm on some function f (which has one marked element y) and the resulting
    1. answers icon 0 answers
more similar questions