SOLUTION: Solve the equation sin (x° - 20°) = cos 42° for x, where 0 < x < 90.

Algebra ->  Trigonometry-basics -> SOLUTION: Solve the equation sin (x° - 20°) = cos 42° for x, where 0 < x < 90.      Log On


   



Question 774687: Solve the equation sin (x° - 20°) = cos 42° for x, where 0 < x < 90.
Answer by josgarithmetic(39620) About Me  (Show Source):
You can put this solution on YOUR website!
cos(42)=sin(90-42)=sin(48)
sin(x-20)=sin(48)
x-20=48
x=48+20
x=68 degrees