Which of the following is not equal to sec⁡ (-85°) ?

sec⁡ (85°)

-sec⁡ (-95°)

sec⁡ (275°)

sec⁡ (-95°)

-85 degrees in is the 4th quadrant so the cos and sec will be positive

sec is also positive in first quadrant so sec (85) will be equal to sec (-85)

Sec is is negative in 3rd quadrant so - sec (-95) will be same also.

sec 275 is in 3rd quadrant so will be negative so not equal

also sec (-95) will be same angle as sec 275

the last 2 options are not equal to sec (-85)