256 Bài tập Hàm số mũ và Logarit cực hay có lời giải chi tiết (P1)

Biết log 6 2=a,log 6 5=b. Tính I=log 3 5 theo a,b I= b/1-a

43/50

Biết 77C6FOKeH34b1Wewk-sX3GdA9RXqxxT4w4lCilk9BiD2cCt8V-7l1KU7WGYFPWh1LiEjhyGPG_jBeKMnZ7u2hIt27dp3USqohqEcaJOii_RP3tb_gcK76us5HDnSTHFa1Ki6wS2tgPQHWdiz0A. Tính I=log35 theo a,b log62=a,log65=b

MWmVJg22lYG-ZzIfkZiN27lM-UHEYAbbFPy8r3jgAh59ypqqV1xFPil3plLRaPQiYBfEuVHiBggorD_OtUqKdsu6uanT0LcfdkJr_e7IetpQhoIvUvyBDmRLMB2wrmtZn9avuaeEX_ESlqZriQ.

Hwdzb7-mEOk60tUjOPvc547af1pM9-HzX3ZhR-GtUSgpPf1Af6yoPfW1FdGGJK8vmNgcec5dvOh6OACHWB7o-n-UA9vvP2Po-1mvvZZgHIv-Qveo55CrnMPi3K9xNu0J4l4G9M-w-NE1p7S4cw.

QmRUNjg4gZlUq-7QLD6FkSaUCpP81ZkzFHjO5_4BXi3rnLyIPW1MGodJRAyHD0uCRgzazJR1vd-FmhRUNNonnPs76V9133X1QTgS3ndAhvNUAsOL1AeR1ilzg5245HVOT2C9RR7DxC3wbwCe3g.

GuFvTCQ5wNUWyz9Rl_gXnwZmTMyW-dPV2sUiu06vibaXgiH6B8FH7xvnbk3Yi8DxMPNm9btbMMAJ-l-S82pwO609Mj0RvrEsAGClQHL-L1QsBLbjiXPBEO6yX7BKUaJkLfbmqH1SNReNPYRQxA.

Giải thích

Chọn B

Ta có

hT9AqhyjuLczMTJk5gtSTK4iYSxsXK2GMAypWJ6STIvbFYqM-UR6lt_-2cuJT1BmUhlL1IDUjgntitHSPaqwFdVqxZ-i_E7t4nvDRRFnAFMmWQ3i-yRmCqMMwjkrGAUaHgHNsS_D.