JEE Main 2012 Mathematics question

Mathematics Quadratic Equations and Inequalities JEE Main 2012

If the sum of the square of the roots of the equation is least, then α is equal to

(1)
(2)
(3)
(4)Correct

Answer: (4)

Solution

Sum of squares \sin2)^2\sin\sin^2\sin$α + 6 =

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Question ID VK-103506