H prime of x, when x equals nine so h prime of nine is what this really is. We need that blue color, it is equivalent to h prime and the prime signifies that Another way just to getįamiliar with the notation of writing this, the derivative of h of x with respect to x at x equals nine. I encourage you to pause this video and think about it on your own before I work through it. Is what is the derivative with respect to x, of h of
Then they define h of x for us, in terms of both f of x and g of x. Then they defined g of x for us in terms of this kind ofĪbsolute value expression. For f, they tell us for given values of x what f of x is equal to and what f prime of x is equal to. Voiceover: We've been given some interesting information here about the functions f, g, and h.
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