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( 1001 )3 का मान क्या होगा ?
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- 1003003001
- 100303001
- 100300301
- 103003001
सही विकल्प: A
∵ ( 1001 )3 = ?
( 1001 )3 = ( 1000 + 1 )3
[ ∴ ( a + b )3 = a3 + b3 + 3ab( a + b ) ]
= ( 1000 )3 + ( 1 )2 + 3 × 1000 × 1 × ( 1000 + 1 )
= 1000000000 + 1 + 3003000 = 1003003001
∴ ( 1001 )3 = 1003003001
अतः इसका मान 1003003001 होगा ।