Question

Calcule o 12° termo da P.G (4,20,100...)

Answer 1

a12 = a1 * q^11
a12 = 4 * 5^11
a12 = 4 * 48 828 125
a12 = 195 312 500

Answer 2

a1 = 4
a2 = 20
q = 20/4 = 5 ***
a1.q^11  =  4 * 5^11 = 4 * 488281 = 1953124 ****