# Calculus

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#1
the diagram shows part of the graph of y=5 cos(x/2). find the area of the shaded regions - ibo 1997

I know how to solve these kind of problems but the x value is not given on the graph.
If the x value was give id find the area enclosed between the curve, x-axis and y-axis by differentiation, but i dont know how to start because a x value is not given.

thanks in advance 0
7 years ago
#2
(Original post by sabi06)
...
Difficult to comment without seeing the diagram. Can you provide a photo of the whole question, or a link to it?
0
7 years ago
#3
(Original post by sabi06)
the diagram shows part of the graph of y=5 cos(x/2). find the area of the shaded regions - ibo 1997

I know how to solve these kind of problems but the x value is not given on the graph.
If the x value was give id find the area enclosed between the curve, x-axis and y-axis by differentiation, but i dont know how to start because a x value is not given.

thanks in advance Attach the diagram and then show what you have tried so far.
0
7 years ago
#4
(Original post by sabi06)
the diagram shows part of the graph of y=5 cos(x/2). find the area of the shaded regions - ibo 1997

I know how to solve these kind of problems but the x value is not given on the graph.
If the x value was give id find the area enclosed between the curve, x-axis and y-axis by differentiation, but i dont know how to start because a x value is not given.

thanks in advance I'm guessing that the region that you are after is upto where the curve crosses the x-axis, i.e. upto where y = 0. Use the equation of the curve to find the x-coordinate at that point.
0
7 years ago
#5
(Original post by sabi06)
the diagram shows part of the graph of y=5 cos(x/2). find the area of the shaded regions - ibo 1997

I know how to solve these kind of problems but the x value is not given on the graph.
If the x value was give id find the area enclosed between the curve, x-axis and y-axis by differentiation, but i dont know how to start because a x value is not given.

thanks in advance Do you have any pictures of the diagram?
0
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