Practice problem
Solve for all solutions. sin(3x)cos(6x)−cos(3x)sin(6x)=−0.9\\\sin(3x)\cos(6x)-\cos(3x)\sin(6x)=-0.9sin(3x)cos(6x)−cos(3x)sin(6x)=−0.9
x≈0.373+2π3kx\approx0.373+\frac{2\pi}3kx≈0.373+32πk
x≈−0.373+2π3kx\approx-0.373+\frac{2\pi}3kx≈−0.373+32πk
x≈0.674+2π3kx\approx0.674+\frac{2\pi}3kx≈0.674+32πk
x≈1.42+2π3kx\approx1.42+\frac{2\pi}3kx≈1.42+32πk
Type a concept, like “slope” or “photosynthesis”.