What is the value of -cos(pi/6)-(-cos(0)) ?

The value of -cos(pi/6)-(-cos(0)) is -(sqrt(3))/2+1

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-cos(pi/6)-(-cos(0))

- cos (\frac{π}{6}) - (- cos (0))

- \frac{3}{2} + 1

Solution steps

- cos (\frac{π}{6}) - (- cos (0))

Use the following trivial identity:

cos (\frac{π}{6}) = \frac{3}{2}

Use the following trivial identity:

cos (0) = 1

= - \frac{3}{2} - (- 1)

Simplify

= - \frac{3}{2} + 1

\frac{40}{tan ( 3 4 ^{\circ} )}

2 (cos (\frac{5 π}{4}) + i sin (\frac{5 π}{4}))

arcsin (\frac{4}{2})

cot (- 14 0^{\circ})

5 \cdot sin (\frac{2 π}{7})

What is the value of -cos(pi/6)-(-cos(0)) ?
The value of -cos(pi/6)-(-cos(0)) is -(sqrt(3))/2+1