Question

найдите log(7) 63 если log(7) 3= a

Answer 1

найдите log(7) 63 если log(7) 3= a
log(7) 63=log(7)3*3*7=log(7)3+log(7)3+log(7)7=a+a+1=2a+1

Answer 2

log₇ 3 =a

log₇ 63 = log₇ (7*9) =log₇ 7 + log₇ 3² = 1 + 2log₇ 3 = 1+2a
Ответ: D) 1+2a