Question

find the principal solution a) cos x = 1 b) cos x = -1 c) cosec x = -1 d) sec x =-$\sqrt{2}$ d) sec x= minus sqrt2 e) tan x = -1 f) root 3 cosec x = -2 f) $\sqrt{3} cosec x =-2$

Answer 1

Step-by-step explanation:

In order to know if a number is divisible by 12, you have to first check if it is divisible by 3 and 4. If it is divisible by both 3 and 4, then the number is divisible by 12. For example: Is 168 divisible by 12