ECUACIONES

I. Ecuaciones matemáticas

1. 2 ( x+1 )+4 x2=52

2.(3 x−2 )(5x+12 )

=64

3. x2−3 x+25=04. 3 ( x−2 )+2=655. 7 x−15=28

II. Ecuaciones estadísticas

1. X=∑ fx

n2. X̂=LRI+[ (n /2−FA )/ f ] c3. ~X=LRI+[ (n/2−FA )/ f ]c

4. SX2=∑

i=2

n X i ∙ni2

N−x−2

5. σ=√ 1N−1∑i=1

N

(x1−x )2

III. Ecuaciones financieras

1. (1+i )n=(1+ jm)mn

2. VP= C

(1+i )n

3. VA=c × [1−(1+ i )−n ]

i

4.x1=

ln( S−PV (d )PV (k ) )σ √T

+12σ √T

5.

d2 xkd t2

=∑j=1

p

( −Gm

∑i=1

n

( x1−( y j)1)2 )