Let a vector r make angles 60°, 30° with x and y axes respectively. What are the direction cosines of r?
<1/2, √3/2, 0>
<1/2, -√3/2, 0>
<1/√2, 1/√2, 0>
<1/2, √3/2, 0>
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