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Question

The complete set of values of k for which the roots of the equation x2 + 2kx – 1 = 0 are real and distinct is

k के मानों का सम्पूर्ण समुच्चय कौनसा है जिसके लिए समीकरण x2 + 2kx – 1 = 0 के वास्तविक तथा भिन्न मूल हैं

A
(0, 1)
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B
(13,1)
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C
(43,13)
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D
(–∞, ∞)
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Solution

The correct option is D (–∞, ∞)
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