Consider the circles x² + y² + 2ax + c = 0 and x² + y² + 2by + c = 0. The two circles touch each other if
c = √(a² + b²)
1/c = 1/a² + 1/b²
1/c = 1/a² - 1/b²
c = 1/(a² + b²)
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
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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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