Answer:
θ = πk, 1.318+2πk, 4.965+2πk
Step-by-step explanation:
4sin(2θ) − 2sin(θ) = 0
8sin(θ)cos(θ) - 2sin(θ) = 0
2sin(θ)[4cos(θ)-1] = 0
2sin(θ) = 0
sin(θ) = 0
θ = πk
4cos(θ)-1 = 0
4cos(θ) = 1
cos(θ) = 1/4
θ ≈ 1.318+2πk, 4.965+2πk
Therefore, θ = πk, 1.318+2πk, 4.965+2πk
x = 8.4
7 x 1.2 = 7 + 1.4 = 8.4
x=8.4
check:
8.4 / 1.2 = 7
2
Pick two points
(2,0) and (3,2)
Then use the slope formula
m= (y2-y1)/(x2-x1)
= (2-0)/(3-2)
= 2/1
=2
yes
