4 years ago

Art.

1 answer:

8 0

The answer I believe is b idk tho I’m pretty sure

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melamori03 [73]

Step-by-step explanation:

$\cos(a) + 2 \cos(a + 240)$

$\cos(a) + 2 \cos(a) \cos(240) - \sin(a) \sin(240)$

$\cos(a) + 2( - \frac{ \cos(a) }{2} + \frac{ \sqrt{3} }{2} \sin(a) )$

$\cos(a) - \cos(a) + \sqrt{3} \sin(a)$

$\sqrt{3} \sin(a)$

If you graph the new identity, and the og identiy, they will be conciding graphs, so they are the same identity.

7 0

3 years ago

Keith_Richards [23]

The correct answer is:

2u-v=7(5i-3j)

Therefore, 5, and 3 go inside the box.

4 0

3 years ago

Viktor [21]

Answer:

hi im from another country see ya ... your country is amazing

Step-by-step explanation:

4 0

3 years ago

Lunna [17]

Answer: 64cm

Step-by-step explanation:

7 0

3 years ago

wlad13 [49]

Answer:

x = 13

x = -5

Step-by-step explanation:

$\frac{(x-4)^2}{3}-13=14\\\frac{(x-4)^2}{3}=27\\(x-4)^2=81\\x-4=\sqrt{81}\\\\ x-4=9\\x=13\\\\x-4=-9\\x=-5$

5 0

3 years ago