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VCE Stuff => VCE Mathematics => VCE Mathematics/Science/Technology => VCE Subjects + Help => VCE Mathematical Methods CAS => Topic started by: Perla on October 09, 2018, 09:07:02 pm

Title: integration help needed pls
Post by: Perla on October 09, 2018, 09:07:02 pm
Hi,

I have the following question:
How do you use the end or right end point method to find the area under the curve if you do not have any of the x and y values excepts that the rectangle strips are of 50 cm (it is not precised if it is the width or wide).

Thank you in advance :):)

Perla
Title: Re: integration help needed pls
Post by: darkz on October 09, 2018, 09:10:27 pm
Hi,

I have the following question:
How do you use the end or right end point method to find the area under the curve if you do not have any of the x and y values excepts that the rectangle strips are of 50 cm (it is not precised if it is the width or wide).

Thank you in advance :):)

Perla

Do you get the equation of the curve? If so, and the X axis is, lets say, measured in centimetres, then you can find the points to use simply by subbing in the endpoints of each rectangle. e.g. f(50) = y point at x=50
=> First rectangle is at (50,f(50)) => 50*f(50)
=> Second rectangle is at (100,f(100)) => 50*f(100) etc...