Los lados es = sqrt(1681)
=41cm
Step-by-step explanation:
a1 = 27
r = -9/27 = -⅓
the formula :
an = a1. r^(n-1)
= 27. (-⅓)^(n-1)
= 3³(-3`¹)^(n-1)
= 3³(-3)^(1-n)
Answer:
(a d)/(bc)
a/b ÷ c/d
Copy dot flip
a/b * d/c
ad / bc
