Question

pls answer fast need it faster​

Answer 1

Answer:

Step-by-step explanation:

≡ log (162÷343) + log (7÷9)² - log (1÷7)

≡ log (162÷343) + log (49÷81) - log (1÷7)

≡ log (162÷343 × 49÷81) - log (1÷7)

≡ log (2÷7) - log (1÷7)

≡log (2÷7 × 7)

≡ log 2 (Hence shown)