The answer to this question might be A
Answer:
48
Step-by-step explanation:
138-90(right angled triangle)=48
I think they the answer for that problem is………….1
Answer:
1. c 2. c 3. b
Step-by-step explanation:
but im not sure
If f(θ) = a cos(bθ), then from the first condition we find
f(0) = 3 ⇒ a cos(0) = 3 ⇒ a = 3
Together with the other conditions, it's evident that f(θ) has a period of π, so
2π/b = π ⇒ b = 2
so that
f(θ) = 3 cos(2θ)
