anonymous
  • anonymous
y=sinx , y=sin3x draw the sketch of the above pair of functions
Mathematics
  • Stacey Warren - Expert brainly.com
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katieb
  • katieb
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amistre64
  • amistre64
that 3 makes the wave compress or stretch
anonymous
  • anonymous
sir here in y=sin3x 2/3 pi is the period . how to draw the graph of y=sin3x is the main problem for meeeeeeeeeeeeeeeeeeeeeee
amistre64
  • amistre64
if x = 2pi, we would normally have one complete cycle when x = 2pi/3 in the second one there we have complete a cycle in 1/3 the time

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anonymous
  • anonymous
sr totally confused can u please draw it if u hv time
amistre64
  • amistre64
notice that the 3 indicates that we are moving 3 times as fast in a given normal period; so we squish the sin by a factor of 1/3
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anonymous
  • anonymous
well thanks please check my answer i am posting
anonymous
  • anonymous
Please check the graph of y=sin3x
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amistre64
  • amistre64
that looks more like a graph of y=sin(1.5x)
amistre64
  • amistre64
you need 3 complete cycles stuffed into a normal period of 2pi
amistre64
  • amistre64
youve only got 1 and a half cyles stuffed in there
anonymous
  • anonymous
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anonymous
  • anonymous
how would i determine to make number of circles sir ? is it dependent on period or amplitude
anonymous
  • anonymous
i have attached the complete graph of y=sinx,y=sin3x on the same axes . is that one correct ?
amistre64
  • amistre64
you are still off on those
anonymous
  • anonymous
why sir ?
amistre64
  • amistre64
well, for starter, your sin x (which is spose to be drawn normal) is going factter than the sin 3x (which is faster).
amistre64
  • amistre64
i drew you a picture
anonymous
  • anonymous
this one sir ? http://assets.openstudy.com/updates/attachments/4f75d709e4b0f07ddab1c77b-amistre64-1333123622987-untitled.png
amistre64
  • amistre64
yep, that the one
amistre64
  • amistre64
notice how there are 3 sins in the same space as 1 sin?
anonymous
  • anonymous
sir drew 1 circle of y=sin3x and y=sinx has 3 circles
.Sam.
  • .Sam.
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amistre64
  • amistre64
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amistre64
  • amistre64
lol, thats not a sketch :P
anonymous
  • anonymous
ok sir if there was sin6x then there would be 6 circles for sin6x correct ?
amistre64
  • amistre64
there would be 6 sin waves stuffed into one regular period, yes; not 6 cycles, but 1/6 of a cycle for each one
amistre64
  • amistre64
the period is 2pi/n where n is the multiplier. in this case n=6
anonymous
  • anonymous
thanks sir sorry for irritating u in questions line. Actually i have just started 11th grade but m in 9th one. derfore facing some problems well i wnt to share a result with u result of my 8th class just came and i topped the secondary section 6th -12th classes with 10 cgpa it meaans A1 in all subjects
amistre64
  • amistre64
ill assume thats a good thing :)
anonymous
  • anonymous
well is there any graph software ?

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