Using a suitable identity determine the value of 64 and cube minus 343 N cube
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Step-by-step explanation:
=( 64)³- (343)³
= (4)³ -(7)³ a=4 ,b= 7
= (a -b)³
= (4-7)³
= (4)³ -(7)³+ 2.(4) .(7)
= 64 -343+56
= 223
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