Question

g(x)=[g(x)=|cosx−1|.
on[0,2π],what is the x value when g attains its maximum value?

Answer 1

range of cos is [-1,1]
|-1-1| = |-2| = 2
|1-1| = 0
therefore range of g(x) is [0,2]
max value is 2 which occurs when cos(x) = -1
From unit circle
cos(x) = -1 when x = pi

Answer 2

Jasleen...I guess you didn't believe me when I answered it before :)

Answer 3

oh haha, don't you hate that

Answer 4

yep

Answer 5

no i just wanted to see how its done!!

Answer 6

and i have one more question that i need help with!
f(x) =x^3+4x^2+4x.
FIND the zeros of f.