3 years ago

Look at this set of ordered pairs:

Mathematics

1 answer:

Fantom [35]3 years ago

6 0

Are you and Mbl fan? If you are be my friend

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Answer:

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Step-by-step explanation:

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3 years ago

5 0 = - in = in quadrant II Given cos = Find sin 3

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Answer:

sinΘ = $\frac{2}{3}$

Step-by-step explanation:

using the identity

sin²x + cos²x = 1 ( subtract cos²x from both sides )

sin²x = 1 - cos²x ( take square root of both sides )

sinx = ± $\sqrt{1-cos^2x}$

given

cosΘ = - $\frac{\sqrt{5} }{3}$ , then

sinΘ = ± $\sqrt{1-(-\frac{\sqrt{5} }{3})^2 }$

= ± $\sqrt{1-\frac{5}{9} }$

= ± $\sqrt{\frac{4}{9} }$

= ± $\frac{2}{3}$

since Θ is in quadrant II where sinΘ > 0 , then

sinΘ = $\frac{2}{3}$

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3 years ago

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4 years ago

What is the lengh of a arc wich is a quater of a circle and the adius of that circle is 4,8 cm

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3 years ago

How many elements are in the set {x | x is an even prime number, xless than100}?

maxonik [38]

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