anonymous
  • anonymous
Double check my answers please :) f(x)=asinx+b f(pi/2)=2 f(3pi/2)=-8 find a and b is a=5 and b=-3?
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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jamiebookeater
  • jamiebookeater
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Callisto
  • Callisto
Yes
anonymous
  • anonymous
Ok, the second part of the equation is to place f(x) =0 and get two answers of x in radians. I got the first one as 0.6435, but how do I get the second one?
Callisto
  • Callisto
π - the answer you get

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anonymous
  • anonymous
What would it be for cos then?
Callisto
  • Callisto
sin (180 -x) = sinx
Callisto
  • Callisto
why?
anonymous
  • anonymous
2pi-answer for cos? I just want to see the difference.
Callisto
  • Callisto
|dw:1332674762098:dw|
Callisto
  • Callisto
if the question is cos not sin, then yes
anonymous
  • anonymous
Ok, yes, that makes sense. thanky you! The last question part of this is sketch the graph of y=f(x)...?
Callisto
  • Callisto
sorry , dinner
anonymous
  • anonymous
I had lunch. Ok. So how do you do that?
anonymous
  • anonymous
Ok, yes, that makes sense. thanky you! The last question part of this is sketch the graph of y=f(x)...? @.Sam. @dpaInc
Callisto
  • Callisto
x 0 | pi/2|pi|3pi/2| 2pi f(x) -3| 2 |-3| -8 |-3 |dw:1332675879050:dw| Ugly drawing sorry :(
.Sam.
  • .Sam.
where's the function?
anonymous
  • anonymous
It's at the top. Thanks Callisto!. Sam can double check :)
Callisto
  • Callisto
|dw:1332676074495:dw| I clicked the wrong button :(
anonymous
  • anonymous
Thanks for your help!!
Callisto
  • Callisto
the graph ends at y=-3, 2=2pi for one period... sorry but it can't be shown on the drawing
Callisto
  • Callisto
* x=2pi You're welcome (if you were saying that to me :P )
.Sam.
  • .Sam.
1 Attachment
.Sam.
  • .Sam.
Your a and b is correct
anonymous
  • anonymous
looks good...

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