f(x)=0 also has itself as its derivative, but no one seems to care at all ☹️
her : i can change him him :
By the definition of derivative, we find that (a^x)' = (a^x)(a^h - 1)/h when h -> 0, Let e be the number so that (e^h - 1)/h = 1, e^h - 1 = h <=> e^h = 1 + h <=> e = (1+h)^(1/h) By definition, this is the only real number that, as the base of an exponential function, gives that function itself as a derivative
e^x is the goat of all functions
i remember my maths professor showed us this proof in intro calc, my mind was blown
I hate my Calc 1 class rn but this video genuinely helped me. Thank you.
The next step would be to show the area under the curve, which is the same value as the slope at any given point
It also has another interesting property. Although it's slope increases exponentially it's tangents intercept on y axis increases linearly with x i.e the intercept of tangent at x=1 is 0, at x=2 is 1, at x=3 is 2.... And so on
NICE
Another intereating method is using taylor's expansion series to prove that for all integer n since e^x=1+x+x^2/2+...x^n/n .then it's derivative would remain the same neglecting the rest since we're doing a derivative
In addition,the difinite integaral(the area below the curve) from negative infinity to any x value of that point is also exactly to its y-coordinates.
Thank you! This helps with comprehending calculus
Thank you,sir
That's literally how e^x is defined
So nice explanation.
fun functions
Not by coincidence, but by definition
f(x)=0: Look at what they have to do to mimic a fraction of my power
Multiply e^x by any constant and the same thing still applies
@funnyhistoryinworld