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3 years ago

Evaluate cos^2 (n/12)

Mathematics

1 answer:

77julia77 [94]3 years ago

5 0

Answer:

[(2 + √3)/4] = 0.9330127

Step-by-step explanation:

We know that

cos (pi/12) ^ 2 =

cos (pi/12)* cos (pi/12) =

[(√6 + √2)/4]*[(√6 + √2)/4] =

(0.9659)*(0.9659) = 0.9330127

[(2 + √3)/4] = 0.9330127

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Step-by-step explanation:

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ale4655 [162]

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Step-by-step explanation:

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2 years ago

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3 years ago

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Ben's living room is a rectangular measuring 12 yards x 204" by how many feet does the length of the room exceed the with the le

Firlakuza [10]

Answer:

The length of the room exceeds the width by 19 feet

Step-by-step explanation:

From the question, the room measures 12 yards x 204", that 12 yards x 204 inches. To determine by how many feet the length of the room exceeds the width, we will first convert both units of measurement ( yards and inches) to feet.

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1 yard = 3 feet

∴ 12 yards will be 3 × 12 feet = 36 feet

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∴ 204" will be 204/12 feet = 17 feet

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3 years ago