3 years ago

Find the value of x in each case:

Mathematics

1 answer:

iVinArrow [24]3 years ago

7 0

Answer:

789 9999 00087 990

99n

Step-by-step explanation:

098

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Fiesta28 [93]

Answer:

+-pi/3 and pi

Step-by-step explanation:

$\cos(x/2)=\pm\sqrt{\dfrac{1+\cos x}{2}}=\cos x +1$

Squaring both sides:

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$\dfrac{1+\cos x}{2}=\cos^2x+2\cos x+1$

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Answer:

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Step-by-step explanation:

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Use the property
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3/9 is the answer I got

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