evaluating trig functions

In which two quadrants is inverse sine defined?

• Quadrant I

• Quadrant II

• Quadrant III

• Quadrant IV

Answer explanation

Remember, the range of inverse sine is restricted from -pi/2 to pi/2 (only Quadrants I and IV!)

In which two quadrants is inverse cosine defined?

• Quadrant I

• Quadrant II

• Quadrant III

• Quadrant IV

Answer explanation

Remember, the range of inverse cosine is restricted from [0, pi] (only Quadrants I and II!)

In which two quadrants is inverse tangent defined?

• Quadrant I

• Quadrant II

• Quadrant III

• Quadrant IV

Answer explanation

Remember, the range of inverse tangent is restricted from (-pi/2, pi/2) (only Quadrants I and IV!)

• TRUE!

• FALSE!