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Ghost Of Highbury:
plzz answer,...which paper???

vanibharutham:
Adi M...

May/ June 2003 Paper 2  Cambridge

shan2391:
Guys i dont know how to find the amplitude and period of function plzz help.
Ref: Q.8 OCt/NOv08 Paper2

vanibharutham:
Shan2391

The question states that

f(x) = 3 + 5 sin2x

Im sure you can easily rearrange that to make it simpler:

f(x) = 5sin2x + 3

The amplitude is always going to be the number infront the trignometric function...
In this case the amplitude will 5 :)

simple,

if forexample f(x) was 25000sin2x, your amplitude would be 25000


Your amplitude involves the actual trignometric identity... in this case... 2x.

Always remember this rule:
To find the period of any trignometric graph, divide the coefficient of x by 360 (but in this case 2pi as we are dealing with radians)

Therefore our period is 180 degrees or simply pi.

Hope that helped

shan2391:

--- Quote from: vanibharutham on May 31, 2009, 07:46:55 pm ---Shan2391

The question states that

f(x) = 3 + 5 sin2x

Im sure you can easily rearrange that to make it simpler:

f(x) = 5sin2x + 3

The amplitude is always going to be the number infront the trignometric function...
In this case the amplitude will 5 :)

simple,

if forexample f(x) was 25000sin2x, your amplitude would be 25000


Your amplitude involves the actual trignometric identity... in this case... 2x.

Always remember this rule:
To find the period of any trignometric graph, divide the coefficient of x by 360 (but in this case 2pi as we are dealing with radians)

Therefore our period is 180 degrees or simply pi.

Hope that helped

--- End quote ---
Thanks a lot man
but what does +3 show in a graph

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