Q. 15. Find a quadratic polynomial whose zeroes are – 4 and 3 and verify the relationship between the zeroes and the coefficients.
Sol. Sum of zeroes, S = – 4 + 3 = – 1 Product of zeroes, P = – 4 (3) = – 12
SECTION C
Questions number 16 to 25 carry 3 marks each.
Q. 16. Show that 
is an irrational number.
Sol.
Or
Using Euclid’s division lemma, show that the square of any positive integer is either of the form 3m or 3m + 1, for some integer m.
Sol. See Q. 17, 2008 (I Outside Delhi).
Q. 17.
Sol.
| Mathematics 2008 Question Papers Class X | |||||||
| Delhi | Outside Delhi | Compartment Delhi | Compartment Outside Delhi | ||||
 |
All Sets(PDF) | |
Set 1 | |
Set 1 | ||
|
Set 2 | |
Set 2 | ||||
|
Set 3 | |
Set 3 | ||||
