What approximate value should come in place of the question mark (?) in the following question? (Note: You are not expected to calculate the exact value.)
(11.99)2 – (8.01)2 + (4.99)2 = ?
(11.99)2 – (8.01)2 + (4.99)2 = ?
Here, 11.99 ≈ 12
8.01 ≈ 8
4.99 ≈ 5
Now, the given expression will become:
? ≈ (12)2 – (8)2 + (5)2
⇒ ? ≈ 144 – 64 + 25
⇒ ? ≈ 105