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2 years ago

633 divided by 3 long division pls I'm doing a test 5th grade kk

Mathematics

1 answer:

solong [7]2 years ago

3 0

hi!!

here is your answer

Answer:

221

Step-by-step explanation:

when you divide 633 by 3, you will get 211

hope it helps you ❤❤❤

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2 years ago

Find cos(2*ABC) 100POINTS

juin [17]

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$-\dfrac{7}{25}$

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<u>Trigonometric Identities</u>

$\cos(A \pm B)=\cos A \cos B \mp \sin A \sin B$

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$\sf \sin(\theta)=\dfrac{O}{H}\quad\cos(\theta)=\dfrac{A}{H}\quad\tan(\theta)=\dfrac{O}{A}$

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A is the side adjacent the angle
H is the hypotenuse (the side opposite the right angle)

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Therefore, using the trig identities and ratios:

$\begin{aligned}\implies \cos(2 \cdot \angle ABC) & = \cos(\angle ABC + \angle ABC)\\\\& = \cos (\angle ABC) \cos (\angle ABC) - \sin(\angle ABC) \sin (\angle ABC)\\\\& = \cos^2(\angle ABC)-\sin^2(\angle ABC)\\\\& = \left(\dfrac{3}{5}\right)^2-\left(\dfrac{4}{5}\right)^2\\\\& = \dfrac{3^2}{5^2}-\dfrac{4^2}{5^2}\\\\& = \dfrac{9}{25}-\dfrac{16}{25}\\\\& = \dfrac{9-16}{25}\\\\& = -\dfrac{7}{25} \end{aligned}$

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633 divided by 3 long division pls I'm doing a test 5th grade kk​

633 divided by 3 long division pls I'm doing a test 5th grade kk