Question

State the sign of tan 380•

Answer 1

Given: The trigonometric term tan 380 degree.

To find: State the sign of tan 380 degree.

Solution:

• Now we have given tan 380 degree.

• We can rewrite it as:

                 tan ( 360 + 20) degree.

• Now we know that tan (360 + x ) = tan x so:

                 tan ( 360 + 20) degree = tan 20 degree.

• So the sign will be positive as it is in first quadrant.

Answer:

          So the sign of tan 380 degree is positive.

Answer 2

Answer:

The sign will be positive as it is in first quadrant