( 2 \tan ( 45 ) = \frac { 16 } { x }
Solve for x
x=8\cot(45)\approx 4.93895699
Graph
Share
Copied to clipboard
2\tan(45)x=16
Variable x cannot be equal to 0 since division by zero is not defined. Multiply both sides of the equation by x.
\frac{2\tan(45)x}{2\tan(45)}=\frac{16}{2\tan(45)}
Divide both sides by 2\tan(45).
x=\frac{16}{2\tan(45)}
Dividing by 2\tan(45) undoes the multiplication by 2\tan(45).
x=8\cot(45)
Divide 16 by 2\tan(45).
Examples
Quadratic equation
{ x } ^ { 2 } - 4 x - 5 = 0
Trigonometry
4 \sin \theta \cos \theta = 2 \sin \theta
Linear equation
y = 3x + 4
Arithmetic
699 * 533
Matrix
\left[ \begin{array} { l l } { 2 } & { 3 } \\ { 5 } & { 4 } \end{array} \right] \left[ \begin{array} { l l l } { 2 } & { 0 } & { 3 } \\ { -1 } & { 1 } & { 5 } \end{array} \right]
Simultaneous equation
\left. \begin{cases} { 8x+2y = 46 } \\ { 7x+3y = 47 } \end{cases} \right.
Differentiation
\frac { d } { d x } \frac { ( 3 x ^ { 2 } - 2 ) } { ( x - 5 ) }
Integration
\int _ { 0 } ^ { 1 } x e ^ { - x ^ { 2 } } d x
Limits
\lim _{x \rightarrow-3} \frac{x^{2}-9}{x^{2}+2 x-3}