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Differential Calculus

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Joined:	30 Mar 2009
Post:	27

7 Apr 2009 12:45:50 IST

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354

graphs...

None

wat is the graph of...........

|y|=sinx

and

|y|=|sinx|

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akshay A NEW BEGINNING...

Blazing goIITian

Joined: 25 Dec 2007

Posts: 1104

7 Apr 2009 17:02:15 IST

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for the graph |y| = sinx

just remove the whole part below the x axis and take mirror of of part above the x axis and draw it below x axis..

and for |y| = | sinx|

for |sinx|

just remove whole part below x axis and take its mirror image above x axis..

now nothing is below x axis hence in |y| = |sinx| we have nothing below x axis hence nothing to remove

so the graph remains same ...

i am unable to post graph due to slower net connection

kabi

Blazing goIITian

Joined: 11 Jan 2009

Posts: 575

7 Apr 2009 21:25:04 IST

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hello

for gerenal case :

Iy I = f(x)

we take only those x which give positive f(x) . So first draw f(x) for those x only and then reflect them wrt x-axis .

I y I = I f(x) I

as now for any x , I f(x) I will be +ve . So first draw If(x) I and thenn relect this wrt x - axis.

Thank u

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