Answer:
∅ = 90°
Step-by-step explanation:
Given;
sin2∅=2sin∅
sin2∅ = 2sin∅Cos∅
but, Sin²∅ + Cos²∅ = 1
Cos²∅ = 1 - Sin²∅
Cos ∅ = √(1 - Sin²∅)
sin2∅=2sin∅ ↓
2sin∅Cos∅ = 2sin∅
2sin∅(√(1 - Sin²∅)) = 2sin∅
Let Sin∅ = P
2P( √(1 - P²)) = 2P
Divide both sides by 2P
√(1 - P²) = 1
Square both sides
1 - P² = 1
P² = 1 - 1
P² = 0
P = 0
Recall, Sin∅ = P
Sin∅ = 0
∅ = Sin ⁻¹(0)
∅ = 90°
Answer:
10
Step-by-step explanation:
Cross multiply
2/3=x/15
3x=30
Divide by 3 on both sides
x=10
So, 2/3= 10/15
Hope this helps! :)
Answer:
Number 25: B or C idk
Number 26: D 1.50M
Tell me if im right i tried sorry if not
Step-by-step explanation:
for all of them calcuate whats in the prenteces first then use those numbers to solve the rest of the problem
The answer is C I’m pretty sure
