General solution of tan q = k
Let a be the least positive angle, such that tan a = k.
tan q = tan a.Also tan (p + a ) = tan a = k.
q = a or p + a = any other co-terminal angleq = a, 2p + a, 4p + a, ....., p + 2p + (p + a) ....
General solution is q = np + a.
Particular Cases




Example:
Solve the following trigonometrical equations lying between 0 and 2p.

Suggested answer:



Let 2q = a.

