# Solve Graphically (1+tan(x))/(1-tan(x))+(1+cot(x))/(1-cot(x))=0

Simplify the left side of the equation.
To write as a fraction with a common denominator, multiply by .
To write as a fraction with a common denominator, multiply by .
Write each expression with a common denominator of , by multiplying each by an appropriate factor of .
Combine.
Combine.
Reorder the factors of .
Combine the numerators over the common denominator.
Graph each side of the equation. The solution is the x-value of the point of intersection.
, for any integer
Solve Graphically (1+tan(x))/(1-tan(x))+(1+cot(x))/(1-cot(x))=0