Answer:
w = π/2
Step-by-step explanation:
I used trig identities (double angle) to solve this problem.
Step 1: Rearrange problem
2cos²(w) - cos(w) - 1 = 0
2cos²(w) - 1 - cos(w) = 0
Step 2: Trig Identity
cos2w - cos(w) = 0
Step 3: Combine like terms
cosw = 0
Step 4: Solve
w = cos^-1(0)
w = π/2
I may have done it wrong so don't rely too much on me
Answer:
1/4 or 0.25
Step-by-step explanation:
- 3.2(4m + 10) – (-7.2m) = 37
- 12.8m+32+7.2m=37
- 20m= 37-32
- 20m=5
- m=5/20= 1/4 or 0.25
Answer:
the seconed one
Step-by-step explanation:
Answer:
Step-by-step explanation:
-5(x – 6) = 10x
-5x+30=10x
-5x-10x = -30
-15x = -30
x= -30/-15 = 2
