Answer:
Step-by-step explanation:
Applying double angle identity:
Doing so would give:
We need to get everything to one side so we have 0 on one side.
Subtract 1 on both sides:
Add on both sides:
Let's factor the left-hand side.
The two terms on the left-hand side have a common factor of .
.
This implies we have:
.
We need to solve both equations.
You are asking they be solved in the interval .
This means look at your unit circle and find when you have your y-coordinates is 0.
You this at 0 and . (I didn't include because you don't have a equal sign at the endpoint of .
Now let's solve
Subtract 1 on both sides:
Divide both sides by 2:
Now we are going to go and look for when the y-coordinates are -1/2.
This happens at and .
The solution set given the restrictions is
Answer:
Step-by-step explanation:
Answer:
$4125.00
14.94 years
$379.50
Step-by-step explanation:
1. A = P(1 + r/n)^(nt)
4837.65 = P(1 + 0.032/4)^(4×5)
4837.65 = P(1.008)^(20)
P = 4125.00
2. A = P(1 + r/n)^(nt)
10250 = 5125(1 + 0.0475/1)^(1×t)
10250 = 5125(1.0475)^t
2 = 1.0475^t
ln 2 = t ln 1.0475
t = 14.94
3. Beth pays the first $100, bringing the cost to $1118. She then pays 25% of this, which is $279.50. So she pays a total of $379.50.
Answer:
i think it’s 34
Step-by-step explanation: