2018-04-27
Average (Notes) New
An average, or more accurately an arithmetic mean, is the sum of n different data divided by n.
For example, if a batsman scores 41, 51 and 43 runs in first, second and third match respectively,
then
Average Related to speed (Notes-2)
Theorem (1) : If a person travels a distance of a speed of x km/hr and the same distance at a speed of y km/hr, then the average speed during the whole journey is given by
Height and Distance
Angles of Elevation and Depression : Suppose we are viewing an object. The line of sight or the line of vision is a straight line from our eye to the object we are viewing.
* if the
Trigonometry (Note-1)
Pythogoras theorem :
In a right- angled triangle, the square of hypotenuse is sum of the squares of the base and the perpendicular.
India ranks 138 in World Press Freedom Index
o India slipped in the annual World Press Freedom Index 2018
2018-04-26
2018-04-26
2018-04-26
2018-04-26
