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)
Answer:
N = -2 1/6
Step-by-step explanation:
1. n/5 = -0.3
5* 5*
n = -1.5
2. -2n= 4 1/3
-2n = 13/3
-2n/ -3 = (13/3)/-2
n = -13/6
n = -2 1/6
Answer: option 2. x²-1
Step-by-step explanation:
concept to know: a²-b²=(a+b)(a-b)
------------
(a+b)(a-b)=a²+b²
(x+1)(x-1)=x²-1
Hope this helps!! :)
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$150.82
8.5% of 139 is $11.82 then u add that to 139
