Answer:
We have sinθ = 12/13
The method here is to figure out the value of θ
Using a calculator sin^(-1)(12/13) =67.38°
67.38° is in quadrant 1 so we must substract 67.38° from 180° wich is π
- 180-67.38= 112.61° ⇒ θ= 112.61°
Now time to calculate cos2θ and cosθ using a calculator
- cosθ = -5/13
- cos2θ = -0.7
The values we got make sense since θ is in quadrant 2 and 2θ in quadrant 3
Answer:
−16x+53
Step-by-step explanation:
Distribute
14−5(6−7)+18
↓
14−30+35+18
Add
14−30+35+18
↓
14−30+53
Combine like terms
14−30+53
↓
−16+53
Answer:
Just like multiplication is adding the same number multiple times, dividing can be described as subtracting the same number multiple times.
Ex:
4 x 3 = 12
4 + 4 + 4 = 12
8/2 = 4
8 -2 -2 = 4
Answer:
a
Step-by-step explanation:
square root distribute to numerator and denominator so both get square rooted 
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