Let `S={a,b,c}epsilonNxxNxxN:a+b+c=21,a<=b<=c}` and T={(a,b,c)epsilon NxxNxxN :a,b,c are in AP} where N is the set of all natural numbers . then the element in the set ` SnnT` is

Let S={(a,b,c) in NN xxNNxxNN : a + b + c = 21, aleblec}and T={(a,b,c)inNNxxNNxxNN : a, b, c are in A. P.}, where NN is the set of all natural numbers. Then the number of elements in the set ScapT is___

Let S = {(a,b,c) in N xx N xx N : a+b+c=21, a le ble c} and T = {(a,b,c) in N xx N xx N : a,b,c are in A.P} where N is the set of all natural numbers . Then the numbers of elements in the set S cap T is

Let S={a,b,c}. Find the total number of binary operations on S.

Let a,b,cbe complex numbers such that |a|=|a-b|=3sqrt(3),|a+b+c|=21ata^(2)+b^(2)+c^(2)=ab+bc+ca, then |b|^(2)+|c|^(2) equals:

Let a = {a, b, c} and R = {(a, a), (b, b), (c, c), (b, c), (a, b)} be a relation on A, then the

Let a = {a, b, c} and R = {(a, a), (b, b), (c, c), (b, c), (a, b)} be a relation on A, then the

Let A={a,b,c} and Let R={(a,a),(a,b),(b,a)}. then ,R is

Let A={a,b,c} and R={(a,a),(b,b),(c,c),(b,c),(a,b)} be a relation on A, then R is :

Let a ,b ,c be positive and not all equal. Show that the value of the determinant |a b c b c a c a b| is negative.