3 years ago

Sin(-120) in exact value

1 answer:

3 0

Step-by-step explanation:

$\because \: sin \: ( - \theta) = - sin \: \theta \\ \\ \therefore \: sin \: ( - 120 \degree) = - sin \: 120 \degree \\ \\ = - sin \: ( 180\degree- 60 \degree) \\ \\ = - sin \: 60 \degree \\ \\ = - \frac{ \sqrt{3} }{2} \\ \\ \purple{ \boxed{\therefore \: sin \: ( - 120 \degree) =- \frac{ \sqrt{3} }{2} }}$

You might be interested in

7.(03.02) What is the factored form of 3x2 + 5x – 12? (1 point) (3x + 3)(x + 4) (3x - 1)(x – 4) (3x + 4)(x - 3) (3x – 4)(x + 3)

mash [69]

Answer:

Hope it can help you... .

If u understand my answer, you can mark me as a brainlist.....

6 0

3 years ago

Read 2 more answers

How wud I draw a 2 dimensional representation of the prism Then find the Area of the entire surface of the prism EXPLAIN GOOD qu

ziro4ka [17]

To draw the 2 dimensional representation, we just "open" the box and flatten it. Once we have it opened, we find the area of each side and add them up for the total surface area. See the pic. Let me know if you have questions. :)

3 0

3 years ago

Help me with number three please

Alexxandr [17]

Y2-Y1/X2-X1 = 7-22/1-4 = -15/-3 = 5
y=5x+ 0

3 0

3 years ago

Read 2 more answers

7/10 -___+ 3/2= 6/5<br>Fill in the blanks to make the statement true

VladimirAG [237]

Answer:

Step-by-step explanation:

7/10-x+3/2=6/5

7/10-x=6/5-3/2

7/10-x=-3/10

-x=-10/10

x=1

6 0

3 years ago

How to find the area of the base of a cone

Gre4nikov [31]

Answer:

Step-by-step explanation:

The base of a cone is simply a circle.

The formula for the area of a circle is A = πr^2.

Example: What is the area of the base of a cone, if the radius of the base is 5 cm?

Answer: A = π(5 cm)^2 = 25π cm^2

7 0

3 years ago