The value of 1801 × 1801 is:
Answer & explanation
Correct answer: option 2
The value of 1801 × 1801 is = (1801)2
( a + b )2 = a2 + b2 + 2ab
(1800 + 1)2 = 18002 + 12 + 2 × 1800 × 1
= 3240000 + 1 + 3600 = 3243601
The value of 1801 × 1801 is:
Correct answer: option 2
The value of 1801 × 1801 is = (1801)2
( a + b )2 = a2 + b2 + 2ab
(1800 + 1)2 = 18002 + 12 + 2 × 1800 × 1
= 3240000 + 1 + 3600 = 3243601