The general equation of a straight line is y = mx + c, where m is the gradient, and y = c is the value where the line cuts the y-axis. This number c is called the intercept on the y-axis
Take the deritiivive
it is zero at pi/4 and it repeats at every pi
minimum at where slope goesfrom negative to positive
so at 5pi/4 and 13pi/4 so at every 2pi interval
evaluate origial at 5pi/4
=
=
or aprox 1.22509
Answer:
Step-by-step explanation:
Given
Required:
Find
Replace f(x) with y
Swap both variables
Make y the subject
Replace y with f-1(x)
I believe it’s B since both A and B are the same angle so the rest wouldn’t make sense
B. the tip was 1/20 of the meal cost.