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Elan Coil [88]
3 years ago
6

Find the cos(19pi/6)

Mathematics
1 answer:
jolli1 [7]3 years ago
7 0
Π=180º

Cos(19π/6)=cos(19*180º/6)=cos (570º)=cos(210º+360º)=cos(210º)=
=-cos 30º=-√3 / 2≈-0.866...

Answer: cos(19π/6)=-cos 30º=-√3/2
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Answer:

First option is correct.

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Step-by-step explanation:

Given:

The given expression is (4^{\frac{2}{5}})^{\frac{1}{4}}

We write the given expression with a rational exponent as a radical expression such as.

=(4^{\frac{2}{5}})^{\frac{1}{4}}

Simplify the above equation by multiplication of powers.

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=(4^{\frac{1}{5\times 2}})

=(4^{\frac{1}{10}})

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Therefore, The answer is =\sqrt[10]{4}.

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