OCR MEI Core 2 3.14 Find the Equation of the Tangent to y = 4/sqrt(x) at x = 16

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thanks!! Also I didn't recognise you without a beard lol

theFLABROLL
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When will you be releasing more C2 videos? Great work

crabmaniac
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any reason not to use y-y1=m(x-x1) rather than using your method of calculating the +c ?

matthewelliott
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when you square root the sixteen, why do you only take the positive value of four?

amberperera