3√1331+3√27/3√125-3√64
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Hi ,
a ) cubth root 1331 = ( 1331 )^1/3
= ( 11³ )^1/3 = ( 11 )^3/3 = 11---( 1 )
b ) cubeth root of ( 27/125 )
= ( 3³/5³ )^1/3 = 3/5-----( 2 )
c ) cubeth root of 64
= ( 4³ )^1/3 = 4----( 3 )
According to the problem given ,
( 1 ) + ( 2 ) - ( 3 )
= 11 + 3/5 - 4
= 7 + 3/5
= ( 35 + 3 ) / 5
= 38/5
= 7.6
I hope this helps you.
: )
a ) cubth root 1331 = ( 1331 )^1/3
= ( 11³ )^1/3 = ( 11 )^3/3 = 11---( 1 )
b ) cubeth root of ( 27/125 )
= ( 3³/5³ )^1/3 = 3/5-----( 2 )
c ) cubeth root of 64
= ( 4³ )^1/3 = 4----( 3 )
According to the problem given ,
( 1 ) + ( 2 ) - ( 3 )
= 11 + 3/5 - 4
= 7 + 3/5
= ( 35 + 3 ) / 5
= 38/5
= 7.6
I hope this helps you.
: )
tulasimani:
but , in key the answer is 14...
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