Question

How many signals can be given with 6 flags of different colors such that :

1. Exactly three flags can be used for a signal 

2.atmost three flags are to be used for a signal? 

3.atleast three flags are to be used for a signal? 

4.any number of flags may be used for a signal? 

If alpha and beta r the zeroes of the polynomial 5x*x-7x+1=0.find the value of 1/alfha+1/beta

A=(1,2,3,4 ,,,,,15) define a relation R from A to A R=[(x, y) /y=3] write its domain, codomain and range

A is point at a distance 13cm from the centre of a circle of radius 5cm

3red and 4 white balls of different size are arrang row at random .what is the probability that no two balls of the same colour are together?

Prove that e=mcsquare

1. ABC is congrats to BCA find its all side areas?
   

sir, are the diagonals of parallelogram equal?

The dimension of cuboid are in ratio 2:3:4 and its total surface area is 8788 cm^2.find the dimension of cuboid.

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