Midterm - Terms to Know Flashcards
instantaneous velocity
lim(h–>0) of [f(x1 + h) - f(x)]/h
lim(x–>0) of sinx/x
1
lim(x–>inf.) of sinx/x
0
lim(x–>c) of A
A
lim(x–>c) of x
c
lim(x–>c) of [f(x) +/- g(x)]
lim(x–>c) of f(x) +/- lim(x–>c) of g(x)
lim(x–>c) of [kg(x)]
k*lim(x–>c) of g(x)
lim(x–>c) of [f(x)^n]
[lim(x–>c) of f(x)]^n
Sandwich Theorem
if g(x) </= f(x) </= h(x) in some interval about c, and lim(x–>c) of g(x) = lim(x–>c) of h(x), then lim(x–>c) of f(x) = L
a function is continuous if…
the value exists
the limit exists
the limit equals the value
intermediate value theorem
if a function is continuous between points a and b, it will take on every value between f(a) and f(b)
tangent line equation
ytan = m(x-x1) + y1
what is a normal line?
a line perpendicular to the tangent line; has the opposite reciprocal slope
when is a function differentiable?
if it has a derivative at every point in its domain, and is both continuous and smooth
power rule
d/dx(x^n) = nx^(n-1)
constant multiple rule
d/dx(cu) = c*d/dx(u)
sum and difference rule
d/dx(u +/- v) = du/dx +/- dv/dx
product rule
d/dx(uv) = du/dxv + dv/dxu
quotient rule
“low d high minus high d low, square the bottom and away we go”
d/dx(u/v) = (du/dxv - dv/dxu)/v^2
position, velocity, acceleration relationships
velocity is the first derivative of position
acceleration is the first derivative of velocity and second derivative of position
velocity and acceleration
when velocity is + or - but increasing, acceleration is +
when velocity is constant, acceleration is 0
when velocity is decreasing, acceleration is -
d/dx(sinx)
cos(x)
d/dx(cosx)
-sin(x)
d/dx(tanx)
sec^2(x)
d/dx(secx)
secxtanx
d/dx(cscx)
-cscxcotx
d/dx(cotx)
-csc^2x