2. Polynomials
medium

યોગ્ય નિત્યસમનો ઉપયોગ કરીને કિમંત મેળવો : $(99)^{3}$

A

$970270 $

B

$979270 $

C

$990277 $

D

$970299 $

Solution

$99=100-1$

$99^{3} =(100-1)^{3}$

$=100^{3}-1^{3}-3(100)(1)(100-1) $

$=1000000-1-300(100-1)$

$=1000000-1-30000+300 $

$=1000300-30001$

$=970299 $

Standard 9
Mathematics

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