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3 years ago

Sin(-120) in exact value

Mathematics

1 answer:

cupoosta [38]3 years ago

3 0

Step-by-step explanation:

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

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Answer:

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Step-by-step explanation:

we have

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Remember that

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we know that the radicand of the function must be greater than or equal to zero

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solve for x

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therefore

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Remember that

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Answer:

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Step-by-step explanation:

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Mazyrski [523]

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Step-by-step explanation:

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