Chapter 2 Logs and Exponents Review
Exponent Laws:
x x = x
a
b
a +b
x x = x
a
b
(x )
a b
ab
=x
a b
x
a
1
=
x
a
a
b
x = b xa
Law of Logs:
log a xy = log a x + log a y
log a x =
log a
log b x log x
=
log b a log a
x
= log a x log a y
y
log a x b = b log a
u". [I]. 1 EU 1 '50
[metersl."minLLte} I
4. Train A runs back and Fmt on an. east-west seeu'on of railroad track. Train A's velocityI measumd in meters
per minute. is given by a differentiable funeu'on UAIII}. Iwhere time I is measured in minutes. Selecte
Chapter 7 Probability Review
Formulas on Exam
()
P A = 1 P ( A)
P( A / B ) =
P( AorB ) = P( A) + P(B ) P( AandB )
P( AandB )
P (B )
P( x )= n C x p x q n x
P( AandB ) = P( A) P(B / A)
(q = 1 p )
Simplified Definitions
Mutually Exclusive:
No overlapping sa
Chapter 2 Sequences and Series Review
Formulae:
Tn = ar n 1
S =
Sn =
(
a 1 rn
1 r
)
Sn =
a rl
1 r
a
1 r
Key points to remember:
1.
The common ratio = any term divided by the previous term
2.
Identify the given values for a , r , n , Tn and S n , then sele