Answer:
Step-by-step explanation:
We can find the inverse function of this excercise, isolating X and then changing the variables.
And now we change the variables and we get the inverse function:
Let's check.
x = 5π/24
4x = 5π/6
cos 4x = cos(5π/6) = cos 150° = -√3/2
cos² 4x = (-√3/2)^2 = 3/4
4 cos² 4x -3 = 4 (3/4) - 3 = 0
Answer: TRUE
When you divide two fractions, you do Keep, Change, Flip or KCF. So you keep the 3/5, you change the division sign to a multiplication sign, then flip the 3/15 to 15/3. So the new equation is 3/5x15/3. Then you simply the two sides so it becomes 1/1x3/1.....
Meaning the answer is 3.
Answer: 6.
Step-by-step explanation:
4^2 = 16
10 − 16 + 6 * 2
6 * 2 = 12
10 − 16 + 12
10 - 16 = -6
-6 + 12 = 6
Answer:
(6,4)
Step-by-step explanation:
y = x-2
y =4
Set the two equations equal
x-2 =4
Add 2 to each side
x-2+2 = 4+2
x =6
Now we need to find y
y =4
(6,4)
