Question

if, however, you score below 60%, you will need to proceed through the items in this module to prepare for the module exam. question 4 1 pts which trigonometric value is positive? sec 135° csc 210° csc 135° sec 210°

Explanation:

Step1: Identify quadrants of angles

135° is in Quadrant II; 210° is in Quadrant III.

Step2: Determine sign of trig functions

Quadrant II: sine (and csc) positive; cosine (and sec) negative. Quadrant III: both sine/cosine negative → csc/sec negative.

Step3: Check each option

sec 135° (negative), csc 210° (negative), csc 135° (positive), sec 210° (negative). Only csc 135° is positive.

Answer:

csc 135°