Maths-

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Easy

Question

# The value of 'λ' such that vertex of parabola y = x^{2} + 2λx + 13 is 4 unit above x axis & lies in first quadrant is

- 3
- 4
- ± 3
- – 3

## The correct answer is: – 3

### To find the value of .

Therefore, the value of is -3

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