Which one of the following is the differential equation that represents the family of curves y = 1 / (2x² - c) where c is an arbitrary constant ?
dy/dx = 4xy²
dy/dx = 1 / y
dy/dx = x²y
dy/dx = -4xy²
For election to the Lok Sabha, a nomination paper can be filed by
Miscellaneous · Easy
In a month if the seventh day is three days earlier than Saturday,then the nineteenth day of the month will be a
Miscellaneous · Easy
Which among the following events happened earliest ?
Miscellaneous · Easy
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%?
Miscellaneous · Easy