A. ²log9+²log9-²log1/3 B. 5log 1/4+5log100-5log10-5log2 Dibantu yaa ka?

²log 9 – ²log 1/3
= ²log (9 : 1/3)
= ²log 3³
= 3 . ²log 3

5'log ¼ + 5'log 100 – 5'log 10 – 5'log 2
= 5'log (¼ × 100 / (10 × 2))
= 5'log (1/4)
= 5'log 2^-2
= -2 . 5'log 2