Answer:
Explanation:
So, to sketch the angle 5π/4 you goe π radians, which is half-circle or 180°, counterclockise, and continue π/4 radians, which is 45°.
Then, the terminal point will be on the third quadrant, 45° below the negative y-axis.
In that quadrant, both x-coordinate and y-coordinate are negatives, and the tangent is positive.
In conclusion, the reference angle is π/4 and the tangent is positive, so you obtain:
A picture with the sketch is attached.