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Nata [24]
2 years ago
5

Solve, for 0 ≤ θ < 360 , the equation sin2 θ = 1 + cos θ

Mathematics
1 answer:
marshall27 [118]2 years ago
3 0

Answer:

θ = 90°, 180°, or 270°

Step-by-step explanation:

sin²θ = 1 + cos θ

Use Pythagorean identity.

1 − cos²θ = 1 + cos θ

Move everything to one side and simplify.

0 = cos²θ + cos θ

Factor.

0 = cos θ (cos θ + 1)

Solve.

cos θ = 0 or -1

θ = 90°, 180°, or 270°

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Lorico [155]

Answer:

6,10,14,18,22

Step-by-step explanation:

4n+2

Let n=1  4(1)+2 = 4+2 = 6

Let n=2  4(2)+2 = 8+2 = 10

Let n=3  4(3)+2 = 12+2 = 14

Let n=4  4(4)+2 = 16+2 = 18

Let n=5  4(5)+2 = 20+2 = 22

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2 years ago
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520 feet

Step-by-step explanation:

The easiest way to visualize this problem is to sketch a quick diagram.

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Hope this helps!

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3 years ago
YOU WILL GET BRAINLIEST!! 20 POINTS
Mariana [72]

Answer:

Step-by-step explanation:

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4 0
2 years ago
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Svetllana [295]

Answer:

1 hr, 48 minutes

Step-by-step explanation:

you can create a proportion:

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2 years ago
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Ivan

20 hot dogs was eaten by the 10 people who attended the hot dog eating contest.

<h3>What is an equation?</h3>

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Let us assume that there were 10 people at the hot dog eating contest. If each person eats 2 hot dog, hence:

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Find out more on equation at: brainly.com/question/2972832

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1 year ago
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