Question

How would I determine the value of the trig ratios when I'm given the angle in radians for example `cot 0.942`?

Answer 1

Since `pi` equals 3.14, 0.942 would be `pi/10`. Therefore, if `cot (pi/10)` is given, all trignometrical ratios can be determined.

`Sin (pi/10) = 1/sqrt(1+cot^2 (pi/10)`
`cos (pi/10)= sqrt (1- sin^2 (pi/10)`

`tan(pi/10)= 1/cot(pi/10)`

`csc(pi/10)= sqrt(1+cot^2 (pi/10)`

`sec(pi/10)= 1/cos (pi/10)`