show that the relation R on Z defined by R={(a,b):|a-b| is even} is an equivalence relation
12 class ncert maths exercise 6.5 in Hindi questions no 24 se 26 tak
12 class ncert maths exercise 6.5 in Hindi questions no 24 se 26 tak
How do you write the equation of the hyperbola given Foci: (0,-5),(0, 5) and vertices (0, -3), (0,3)?
The speed of a motor boat in still water is 15 km per hour. If it goes down the stream 30 kilometre and again returns to the starting point in a total time of 4 hours and 30 Minutes .Find the speed of the stream