Saved Bookmarks
| 1. |
Using the formula (a – b)2=(a2 – 2ab + b2), evaluate (196)2. |
|
Answer» Given (196)2 We have (a – b)2 = (a2 – 2ab + b2)(196)2 can be written as 200-4 So here a=200 and b=4 Using the formula, (200 – 4)2 = (2002 – 2 X 200 X 4 + 42) On simplifying we get (200 – 4)2 = (40000 – 1600 +16) (196)2 = 38416 |
|