Let A={x : x is a colour in national flag of India} and B={Red, Blue, Green}. Are these sets equivalent?

Find the odd one out: Brown, Blue, Green, Red

The set {x: x in A, x in B, x in A cap B} is .......

Find the odd one out: Brown, blue,green, red

Let A and B be two sets. Then A-B equals

One die of red colour, one of die white colour and one of blue colour are placed in a bag. One die is selected at random and rolled, its colour and the number on its uppermost face is noted. Describe the sample space.

Let Z be the set of all integers and R be the relation on Z defined as R={(a , b); a ,\ b\ in Z , and (a-b) is divisible by 5.} . Prove that R is an equivalence relation.

Let K be the set of all values of x, where the function f(x) = sin |x| - |x| + 2(x-pi) cos |x| is not differentiable. Then, the set K is equal to

Let P be the set of all triangles in a plane and R be the relation defined on P as a Rb if a is similar to b. Prove that R is an equivalence relation .