MATHEMATICS
Comptt.
(Set III - OutsideDelhi)
Time allowed : 3 hours
Maximum marks : 80
Questions number 1 to 10 carry 1 mark each.
Q. 1. For what value of k does the equation 9x2 + 3kx + 4 = 0 have equal roots? 1
Sol. 
Ans. 
Q. 2. The graph ofy = f (x) is given in igure 1. How many eroes are there of f (x)?
Ans. The number of zeroes is ‘‘0” as the graph does not intersect the x-axis.
Q. 3. For what value of k, are the roots of the quadratic equation kx2 + 4x + 1 = 0 equal and real?
Sol. 
Ans. k = 4
| Mathematics 2008 Question Papers Class X | |||||||
| Delhi | Outside Delhi | Compartment Delhi | Compartment Outside Delhi | ||||
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All Sets(PDF) | |
Set 1 | |
Set 1 | ||
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Set 2 | |
Set 2 | ||||
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Set 3 | |
Set 3 | ||||
