Question

logaritmo! preciso da conta​

Answer 1

loga b = c, a^c = b.

a^(loga b) = b

b^0 = 8 - a/2

- a/2 = 1 - 8

a = 2 x (8 - 1)

a = 14

log18 2 = log18 (b/3 - 1)

b/3 - 1 = 2

b/3 = 2 + 1

b = 3 x 3

b = 9

y = 8^[log5 17 x log8 (14 - 9)]

y = 8^[log5 17 x log8 5]

y = 8^[log8 17/log8 5 x log8 5]

y = 8^(log8 17)

y = 17