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2 results for “definition”
Formulae (2)
Geometry & Trigonometry
Basic
Secant Definition
sec
θ
=
1
cos
θ
\sec\theta = \frac{1}{\cos\theta}
sec
θ
=
c
o
s
θ
1
Reciprocal of cosine.
Calculus
Advanced
Derivative (Limit Definition)
f
′
(
x
)
=
lim
h
→
0
f
(
x
+
h
)
−
f
(
x
)
h
f'(x) = \lim_{h \to 0}\frac{f(x+h)-f(x)}{h}
f
′
(
x
)
=
lim
h
→
0
h
f
(
x
+
h
)
−
f
(
x
)
Formal definition of the derivative.