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C1 intergration help

ImageUploadedByStudent Room1457552351.670338.jpgCould someone prove 2B pls


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Original post by Dr Cobbold
ImageUploadedByStudent Room1457552351.670338.jpgCould someone prove 2B pls


Posted from TSR Mobile

Integrate the function, use the given point to find the constant, then find the coordinates of A.
Now use f ' (x) to find the gradient of the tangent. The negative reciprocal is the gradient of the normal!
(edited 8 years ago)
Original post by Dr Cobbold
ImageUploadedByStudent Room1457552351.670338.jpgCould someone prove 2B pls


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the normal to the curve has a gradient which is a negative reciprocal to the tangent. so if we let m=gradient of the normal line then the equaion is
y+2=m(x-1)
Reply 3
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B_9710
18
Integrate f′(x) f'(x) and you will get f(x) f(x) . Use the fact that the curve passes through the point (1,-2) to find the constant of integration, c.
Reply 4
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Dr Cobbold
OP
5
Original post by B_9710
Integrate f′(x) f'(x) and you will get f(x) f(x) . Use the fact that the curve passes through the point (1,-2) to find the constant of integration, c.


Thank you


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Original post by Dr Cobbold


You are, ahhem, welcome.

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