³√2:³√4 = 7:___?
সমাধান
সঠিক উত্তর: Option C
³√2:³√4 = 7:x (ধরি)
=> ³√2/³√4 = 7/x
=> x = 7× (³√4/³√2) = 7×4^1/3 /2^1/3
= 7(4/2)^1/3
= 7 × 2^1/3
= 7 × 2^1/3
= 7³√2
