1. f(x) = { 1/x , if x ≠ 0 ; 0 , if x = 0 }
2. f(x) = { 2x + 5 , if x > 0 ; x² + 2x + 5 , if x ≤ 0 }
Which of the above functions is/are derivable at x = 0 ?1 only
2 only
Both 1 and 2
Neither 1 nor 2
For election to the Lok Sabha, a nomination paper can be filed by
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In a month if the seventh day is three days earlier than Saturday,then the nineteenth day of the month will be a
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Which among the following events happened earliest ?
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An 80-litre solution of alcohol and water has 75% alcohol. How much water (in litres) must be added to bring down the concentration of alcohol to 60%?
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