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Mashcka [7]
3 years ago
13

What are all the exact solutions of -3tan^2x+1=0? Give your answers in radians.

Mathematics
1 answer:
-BARSIC- [3]3 years ago
8 0

Answer:

x = π n_1 + π/6 for n_1 element Z

or x = π n_2 - π/6 for n_2 element Z

Step-by-step explanation:

Solve for x:

1 - 3 tan^2(x) = 0

Subtract 1 from both sides:

-3 tan^2(x) = -1

Divide both sides by -3:

tan^2(x) = 1/3

Take the square root of both sides:

tan(x) = 1/sqrt(3) or tan(x) = -1/sqrt(3)

Take the inverse tangent of both sides:

x = π n_1 + π/6 for n_1 element Z

or tan(x) = -1/sqrt(3)

Take the inverse tangent of both sides:

Answer:  x = π n_1 + π/6 for n_1 element Z

or x = π n_2 - π/6 for n_2 element Z

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B) What is the power of y in 3y+2=14
DochEvi [55]

3y+2=14

Subtract 2 from both sides.

3y=12

Divide 3 from both sides.

y=4

Now for the second part. We'll do the same process as the first one.

x+7=19

 -7   -7

x=12

---

hope it helps

5 0
3 years ago
13.
goblinko [34]

Step-by-step explanation:

-1/ 4 , -2/4 , 0.20 , 0.90 ,3/4 ,1.50 - 0.50 ,7/4

because if you changed them whole to decimal it shows the result

-1/4 = - 0.25

-2 / 4 = - 0.5

3 / 4 = 0.75

1.50 - 0.50 = 1

7/4= 1.75

0.20 and 0.90 are already decimal numbers

7 0
2 years ago
Y=-3x-18 helpppppppppp
fiasKO [112]

Answer:

Your MOM

Step-by-step explanation:

Sorry Need POINT

8 0
3 years ago
Read 2 more answers
Solve the equation.<br> Z<br> -7=<br> 3<br> 12<br> 7<br> Oz=<br> 3<br> Oz=2<br> Oz=-21<br> Oz=21
Troyanec [42]

Answer:

What is equation?

Step-by-step explanation:

6 0
3 years ago
So far, Keith has burned 604.3 calories. He wants to burn a total of 700 calories. How many more calories must Keith burn?
Vanyuwa [196]
So to do this you need to use subtraction to find it how many more calories he needs to burn 700. so you would do 700 - 604.3 to get an answer of 95.7! :)
7 0
2 years ago
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