"If `N=(2^(log_(70)9800))(5^(log_(70)140))(7^(log_(70)2))`then `N`is equal to 20 (b) 60 (c) 18 (d)
Channel: Doubtnut
Date: 05/04/2020

Pl"If `N=(2^(log_(70)9800))(5^(log_(70)140))(7^(log_(70)2))`
then `N`
is equal to 
20 (b) 60 (c) 18
 (d) 40"