If A={1,2,3},B={a,b,c} which of the following are relations from A to B?`R1={(1,a),(1,b),(1,c)}`

If A={1,2,3},B={a,b,c} which of the following are relations from A to B? R2={(1,c),(2,b),(2,a)}

If A={1,2,3},B={a,b,c} which of the following are relations from A to B? R3={(3,2),(1,c),(3,a)}

If A={1,2,3},B={a,b,c} which of the following are relations from A to B? R5={(1,d),(2,c),(3,a)}

If A={1,2,3},B={a,b,c} which of the following are relations from A to B? R4={(2,c),(3,c),(4,c)}

If A={1,a,b,c} then find the number of relations that can be defined on A.

Factorise : |(1,a,bc),(1,b,ca),(1,c,ab)|

If a,b,c,d are in G.P show that each of the following three term are also in G.P 1/(a^3+b^3),1/(b^3+c^3),1/(c^3+d^3) .

If a,b,c,d are in G.P show that each of the following three term are also in G.P 1/(a^2+b^2),1/(b^2+c^2),1/(c^2+d^2) .

Find the value of : |(1,a, b+c),(1 , b, c+a),(1,c,a+b)|

If A={1,2,3},B={2,3,4,5} and C={2,4,6,8} then show that A-(A-B)=Ann B