Determine whether the relation R in the set A ( 1,2,3,4,5,6) as R =( (x, y) : y is divisible by x ) is reflexive , symmetric, transitive

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(1+x^2)dy/dx+2xy=cotx

find the locus of Z , Im (2z+1)/(iz+1)=6

Find the number of edges of a solid shape if it has 20 faces and 36 vertices

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evaluate 

Sample papers of class 12th 5marks

38appollonius theorem

The capacity of a closed cylindrical vessel of height 1 metre is 15.4 litres how many square metres of metal sheet would be needed to make it