1.

Find the value of log 6 + 2 log 5 + log 4 – log 3 – log 2.

Answer»

log 6 + 2 log 5 + log 4 – log 3 – log 2

= (log 6 + log 52 + log 4) – (log 3 + log 2)

= log (6 x 52 x 4) – log 3 x 2

= log((6 x 52 x 4)/(3x 2))

= log (52 x 4)

= log (25 x 4) = log 100 = 2

Hence, log 6 + 2 log 5 + log 4 – log 3 – log 2 = 2



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