Question

find the value of tan (-330°) give me the steps

Answer 1

please tell me useful or not

Answer 2

as 330 degree is 360-a it comes in 4 th quadrant
In 4 th quadrant only cos and sec are positive 
so, tan(-330)= -tan(360-300)
                    = -tan(30)
                    = - (-1/root 3)
                    =1/root 3
I hope its right.