Step-by-step explanation:
For this Q, you should draw a triangle to help you with the values.
cos x =

csc x =

tan x = sin x/ cos x
= 1
cot x = 1
sec x =

x = 45 degrees
Answer:
Step-by-step explanation:
Answer:
28-4x
Step-by-step explanation:
Step 1: Open most inner bracket and simplify
=18-2(x+x-5)
=18-2(2x-5)
Step 2: Expand brackets by multiplying 2 in and simplify
=18-2(2x)-2(-5)
=18-4x+10
=28-4x
Therefore the answer is 28-4x