If x is real, the expression x^2+34x-71 x^2+2x-7 takes all values except those which lie in the interval (a,b) where

JEE Main Mathematics question

If is real, the expression takes all values except those which lie in the interval where

Answer: (C)

Let ; then . Real needs , which simplifies to , i.e. or . So the values missed lie in , giving , , option

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Question ID VK-013554