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Need help with differentiation
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Matheen1
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davros
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Matheen1
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(Original post by davros)
What have you done so far?
What have you done so far?
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username5857626
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#4
(Original post by Matheen1)
I worked out dy/dx and made it equal to zero
I worked out dy/dx and made it equal to zero
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Matheen1
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#5
(Original post by Bronfenbrennerzy)
You need to work out the second derivative and see what that tells you.
You need to work out the second derivative and see what that tells you.
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username5857626
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#6
(Original post by Matheen1)
I got stuck on finding dy/dx
I got stuck on finding dy/dx
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Parinoor
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#7
so first i would differentiate the equation
then set dy/dx = 0
u should only get one answer
which is ur stationary point
that x that u found, sub in original equation to get y and there u go!
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davros
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#8
(Original post by Parinoor)
stationary points is when dy/dx = 0 right
so first i would differentiate the equation
then set dy/dx = 0
u should only get one answer
which is ur stationary point
that x that u found, sub in original equation to get y and there u go!
stationary points is when dy/dx = 0 right
so first i would differentiate the equation
then set dy/dx = 0
u should only get one answer
which is ur stationary point
that x that u found, sub in original equation to get y and there u go!
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IJaguar
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#9
(Original post by Matheen1)
I worked out dy/dx and made it equal to zero
I worked out dy/dx and made it equal to zero
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macpatgh-Sheldon
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#10
(Original post by IJaguar)
Do you know how to find the nature of a stationary point?
Do you know how to find the nature of a stationary point?
If value of y is sl lower just below and sl lower just above, it is a max
If both sl higher, then min.
If both in same direction, then inflexion point.
You can work out why - I know you believe in using your brain from the bio Q a few min ago!!
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