The answer to your question is D) √5x/5x.
I hoped this helped!
From the identity,
sin^2(x)+cos^2(x)=1
then
cos(x)=sqrt(1-sin^2(x))
where sin(x) is given as 0.42.
Note that the above answer applies to 0<x<90 degrees
The answer would be 90 line ups
This is because 18 x 5 = 90
Step-by-step explanation:
