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Class 10 · Mathematics
→If A = {1, 3, 5} and B = {2, 4, 6, 8}, how many ordered pairs (x, y) in A × B satisfy x + y > 9?
Class 11 · Mathematics
→If (A={2,4,6}) and (B={1,2,3,4}), how many pairs ((x,y)) in (A\times B) satisfy (x-y) is positive?
Class 11 · Mathematics
→If (A={1,2,3}) and (B={2,3,4}), how many pairs ((x,y)) in (A\times B) have (xy) even?
Class 11 · Mathematics
→If A={1,2,3,4} and B={1,2,3,4}, how many ordered pairs (x,y) in A×B satisfy x|y?
Class 10 · Mathematics
→If A = {-1, 0, 1, 2} and B = {0, 1, 2}, how many ordered pairs (x, y) in A × B satisfy x + y = 1?
Class 11 · Mathematics
→If A={0,1,2} and B={1,2,3}, how many ordered pairs (x,y) in A×B satisfy x<y?
Class 11 · Mathematics
→If (A={1,2}), (B={3}) and (C={4,5}), how many elements are in (A\times(B\cup C))?
Class 11 · Mathematics
→If (A\times B=\varnothing), which conclusion is always true?
Class 11 · Mathematics
→If A×B={(1,3),(1,4),(2,3),(2,4)}, what are A and B?
Class 11 · Mathematics
→If ((a+b,a-b)=(9,1)), what is the value of (a^2-b^2)?
Class 10 · Mathematics
→If (2x - 1, y + 3) = (5, 10), what are the values of x and y?
Class 11 · Mathematics
→If (A={1,2,3}) and (B={4,5}), what is the number of subsets of (A\times B) having exactly (2) ordered pairs?
Class 11 · Mathematics
→If (n(A)=4) and (n(B)=5), how many relations from (A) to (B) are possible?
Class 11 · Mathematics
→If (n(A)=7), how many pairs in (A\times A) have distinct coordinates?
Class 11 · Mathematics
→If (n(A)=6), how many pairs in (A\times A) have equal coordinates?
Class 11 · Mathematics
→If (A=[1,3]) and (B=(2,5)), which point is in (A\times B)?
Class 11 · Mathematics
→If (A\subseteq C) and (B\subseteq D), which relation is definitely true?
Class 11 · Mathematics
→If (A={1,2,3,4}), (B={a,b}), (C={2,3,5}) and (D={b,c}), how many elements are in ((A\times B)\cap(C\times D))?
Class 11 · Mathematics
→If (A={1,2,3}) and (B={2,4,6}), which is not an element of (A\times B)?
Class 11 · Mathematics
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