3 years ago

HELP MEE PLEASEEEE I NEED THE CORRECT ANSWER

Mathematics

1 answer:

Vika [28.1K]3 years ago

3 0

It’s C oof oof oof oof

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siniylev [52]

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$12\cos^2x-9=0\qquad\text{add 9 to both sides}\\\\12\cos^2x=9\qquad\text{divide both sides by 12}\\\\\cos^2x=\dfrac{9}{12}\\\\\cos^2x=\dfrac{9:3}{12:3}\\\\\cos^2x=\dfrac{3}{4}\to\cos x=\pm\sqrt{\dfrac{3}{4}}\\\\\cos x=\pm\dfrac{\sqrt3}{2}\\\\\text{Look at the picture}\\\\x=\dfrac{\pi}{6}\ \vee\ x=\dfrac{5\pi}{6}\ \vee\ x=\dfrac{7\pi}{6}\ \vee\ x=\dfrac{11\pi}{6}$

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2 years ago

Which equation represents the transformed function below?

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2 years ago

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What does "x'' equal if 16=x-12

Nostrana [21]

Answer:

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Step-by-step explanation:

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this is ez

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