I was wondering how do i do the phase shift for

http://www.webassign.net/www38/latex...81d6241275.gif

all i know is:

?? ≤ 3x ≤ ??

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- Oct 16th 2009, 09:43 PMS2KrazyHow to do: Phase Shift of tan
I was wondering how do i do the phase shift for

http://www.webassign.net/www38/latex...81d6241275.gif

all i know is:

?? ≤ 3x ≤ ?? - Oct 17th 2009, 12:16 AMGrandad
Hello S2KrazyThe graph of is the same as the graph of , shifted a distance to the left.

If you want to see why, just look at the zero values.When . So the graph 'starts' at .

But when . So this graph 'starts' at , and it's when that we get the value .Now if we multiply the independent variable by , and replace with , we get the graphs of and . Now, in the second graph, we shall need to take to get our zero value of . So that's . So the graph has now been shifted to the left.

Finally, note that multiplying by , to give , makes no difference to the phase-shift: it merely 'stretches' the graph in a vertical direction either side of the x-axis by a factor of .

Grandad - Oct 17th 2009, 10:23 AMS2Krazy
ah icic cool thxs.

so for

http://www.webassign.net/www38/latex...d954a06db3.gif

the phase shift would be -4pi/5 correct? - Oct 17th 2009, 10:54 AMGrandad