3 years ago

The value 5pi/24 is a solution for the equation 4 cos^2 (4x)-3=0. True or false

Mathematics

1 answer:

Margaret [11]3 years ago

5 0

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

You might be interested in

If profit is represented by a polynomial function, and the function is graphed, what do the x - Intercept represent to the reade

Ludmilka [50]

Answer:

Breakeven quantity

Step-by-step explanation:

x intercepts are basically where there's no profit and no loss.

Revenue = cost

Which is also called the break even point

7 0

2 years ago

HELPPP PLEASEEE FOR 15POINTS

lilavasa [31]

Answer:

I'm not ok. that is too expensive

Step-by-step explanation:

7 0

2 years ago

Read 2 more answers

You roll a fair 666-sided die. What is \text{P(roll greater than 4})P(roll greater than 4)P, left parenthesis, r, o, l, l, space

enyata [817]

Answer:

0.5

Step-by-step explanation:

I found this out because I am smart

7 0

3 years ago

Which method can be used for separating a mixture of sand and salt?

icang [17]

The answer should be "filtration" because distillation is for liquids. Filtration filters out the unwanted products.

8 0

2 years ago

PLS HELP GIVING BRAINLY FAST

Oksi-84 [34.3K]

Answer:

1) Linear equation

2) Non Linear equation

3) Non Linear equation

4) Linear equation

5) Non Linear equation

i hope this helps!

Step-by-step explanation:

5 0

2 years ago