From part a i know that sin(x)-cos(x) = (root2)sin(x-pi/4)

i think i know how to get the max and min

max=root2 which occurs when (root2)sin(x-pi/4)=root2

sin(x-pi/4)=1

x-pi/4=pi/2, 5pi/4

x=3pi/4. 3pi/2

is that right? can somebody please tell me how to do the rest of the question and correct me if the max is wrong thank you! x

## Wave Function 2002 p1 9b

### Floorball Maniac

Posted 07 April 2005 - 10:57 AM

I haven' t worked it out to see if your right but the method looks right.

You will still have to work out the minimum value (min = - 2)

and where it cuts the x and y axis (x=0, y=0)

Then the fun part... drawing it! OMG I cant draw graphs to save myself!

You will still have to work out the minimum value (min = - 2)

and where it cuts the x and y axis (x=0, y=0)

Then the fun part... drawing it! OMG I cant draw graphs to save myself!

### aldo

Posted 07 April 2005 - 11:54 AM

No, I have seen that in the past and attached a file just last night to another topic, but there isn't an attach file at the bottom of the page.

All it has is the post options, enable emotions, signature and all that stuff, and below it post icons which is all the smiley faces.

Then all i can do is add a reply or preview.

All it has is the post options, enable emotions, signature and all that stuff, and below it post icons which is all the smiley faces.

Then all i can do is add a reply or preview.