From sin(a-b) = sin(a)cos(b) - cos(a)sin(b)
let a=9x, b=x
sin(9x)cos(x) - cos(9x)sin(x) = sin(9x-x) = sin(8x)
Answer:2/5
Step-by-step explanation:8 out of 20 marbles reduces down to 2/5.
Answer:
105°
Step-by-step explanation:
Same-side interior angles are supplementary, so angle 4 and the one marked 75° are supplementary.
∠4 = 180° -75°
∠4 = 105°
Answer:
65 Degrees
Step-by-step explanation:
