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Popular >

arccos(-1/7)

Solution

arccos (- \frac{1}{7})

Solution

1.71414 \dots

+1

Decimal Notation

98.21

Solution steps

arccos (- \frac{1}{7})

Refine to a decimal form

= 1.71414 \dots

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\frac{36}{2.8665600000000 \dots} sin (0.0478800000000 \dots)

sin(arcsin(5/3 pi))

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Frequently Asked Questions (FAQ)

What is the value of arccos(-1/7) ?
The value of arccos(-1/7) is 1.71414…