Try another version of this question Get help: Box 1: Enter your answer as an expression. Example: 3x^2+1, x/5, (a+b)/c
Write the sum as a product (only use decimals inside of the trig functions):
`sin(14.3b)+sin(9.9b) = `
Be sure your variables match those in the question `2 sin(12.1 b) cos(2.2 b)`