What is expand 1/(1-cos(30))-1/(1+cos(30)) ?

The solution to expand 1/(1-cos(30))-1/(1+cos(30)) is 4sqrt(3)

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expand 1/(1-cos(30))-1/(1+cos(30))

expand

\frac{1}{1 - cos ( 3 0 ^{\circ} )} - \frac{1}{1 + cos ( 3 0 ^{\circ} )}

43

Decimal Notation

6.92820 \dots

Solution steps

\frac{1}{1 - cos ( 3 0 ^{\circ} )} - \frac{1}{1 + cos ( 3 0 ^{\circ} )}

\frac{1}{1 - cos ( 3 0 ^{\circ} )} = \frac{2}{2 - 3}

\frac{1}{1 + cos ( 3 0 ^{\circ} )} = \frac{2}{2 + 3}

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

Simplify

= 43

(2 x - 3 y^{2}) d x + (- y^{3}) d y

\frac{1}{s ^{2} ( t s + 1 )}

\frac{( x + 1 ) d x}{( x ^{2} ( x - 1 ) )}

\frac{\partial}{\partial z} ((x) (x + 2 z))

\frac{n !}{( n ( n - 1 ) ) !}

What is expand 1/(1-cos(30))-1/(1+cos(30)) ?
The solution to expand 1/(1-cos(30))-1/(1+cos(30)) is 4sqrt(3)