Find the values of in degrees 0 90 and radians 0 2 witho

Find the values of in degrees (0° < < 90°) and radians (0 < < /2) without using a calculator. (

a) cot = sqrt3

= degrees

= radians

(b) sec = 2

= degrees

= radians

Solution

a) cot = sqrt3

=> cot = cot (pi/3)

=> = pi/3

= pi/3 radians

= 30 degrees

(b) sec = 2

=> sec = sec(pi/3)

=>   = pi/3

= pi/3 radians

= 60 degrees