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3 years ago

Find sinx given cos2x=5/9

Mathematics

1 answer:

Diano4ka-milaya [45]3 years ago

8 0

Answer:

sinx = √2/3

Step-by-step explanation:

cos2x = 1-2sin²x

5/9 = 1-2sin²x

2sin²x =1-5/9

2sin²x = 4/9

sin²x = (4/9)/2

sin²x = (4/9)*(1/2)

sin²x = 2/9

sinx = √2/3

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emmainna [20.7K]

Answer:

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Step-by-step explanation:

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2 years ago

Your bank account is sitting on $14,000. You started with a principal balance of $12,500. If the interest rate was 4.5% compound

Simora [160]

Answer:

$t=2.5\ years$

Step-by-step explanation:

we know that

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Apply ln both sides

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Remember that

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3 years ago

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Answer:

Step-by-step explanation:

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