Question

How do you determine if `sec60^circ<sec75^circ` is true or false?

Answer 1

By thinking graph

Explanation:

graph{secx [-10, 10, -5, 5]}

Between 0 to 90, secant is increasing function as can be seen clearly (or use calculus), and we know that for a function f(x), if `x_1 > x_2 rArr f(x_1) > f(x_2)` then f(x) must be an increasing function.

Use this definition to check Ur answer