As seen from the top and bottom of a building of height h metres, the angles of elevation of the top of a tower of height ((3 + √3)/2)h metres are α and β respectively. If β = 30°, and if θ is the angle of depression of the foot of the tower as seen from the top of the building, then what is tan θ equal to?
(3 − √3)/3√3
(3 + √3)/3√3
(2 − √3)/3√3
None of the above
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