Question

if the identity cos^2 x = 1- sin^2 x was verified graphically then the graphs of y= cos^2x and y= sin^2 x would be :

a) be horizontally shifted
b) identical

Answer 1

c) be horizontally shifted by pi/2 units relative to each other
d)be horizontally shifted by pi units relative to each other
e) be vertically shifted by 1 unit relative to eachothe

Answer 2

@mertsj can u help me out?

Answer 3

I don't know is I can help.
Plot the graph y= sin^2 x and y=cos^2x
Then you would realise that when y=sin^2 x shifts pi/2 to the left, you get the same graph as y=cos^2 x. That is also true when you compare y=sinx and y=cosx

Answer 4

so it would be c..

Answer 5

That's what I think.

Answer 6

thts wht i thought too just wanted to make sure.. thanks.
can u see if im right with a couple other questions?

Answer 7

I would try, but I'm not sure if I could help

Answer 8

10-3sinx=13 + 7sinx the solution to this

Answer 9

10-3sinx=13 + 7sinx
-3= 10sinx
sin x = -3/10
Now, it's the time to use calculator

Answer 10

wht abt this root 3 tan x+1 =0

Answer 11

sqrt3 tan x+1 =0
sqrt 3 tanx =-1
tanx = -1/sqrt3
Calculator time again. Remember there are 2 angles