Question

The value of sec minus 75 degree

Answer 1

Step-by-step explanation:

Sec(-75°) = Sec(75°)

Sec(45°+30°)

1/Cos(45°+30°)

1/{Cos45°Cos30° - Sin45°Sin30°}

1/{ √3/(2√2) - 1/(2√2) }

1/{(√3-1)/2√2}

= 2√2 /(√3-1)