Answer:
a)
c)
...................
Explanation:
Identity: sec2θ=1+tan2θ
sec2(π2−x)−1=1+tan2(π2−x)−1
=tan2(π2−x)
Identity: tan(π2−θ)=cotθ
=cot2x
.25 it 1/4 or an inch should be correct
x=-2
Step-by-step explanation:
It is a straight line when x=-2 :)