The value of 2492 - 2482 is
12
477
487
497
2 Likes
By a2 - b2 = (a - b)(a + b) formula,
2492 - 2482 = (249 - 248)(249 + 248) = 1 × 497 = 497.
Hence, Option 4 is the correct option.
Answered By
1 Like
If x + y = 11 and xy = 24, then x2 + y2 is equal to
121
73
48
169
If a + b + c = 0, then the value of a3 + b3 + c3 is
0
abc
2abc
3abc