Question

A = {x:x² - 5x +6 =0} , B= {2, 4}, C={4,5} എങ്കിൽ A x (B∩C) ?

• A. {(2,4) , (3,4)}
• B. {(2,5), (3,5)}
• C. {(3,2), (5,4)}
• D. {(2,2), (3,3)}

Answer 1

Answer:

A. {(2,4) , (3,4)}

A = {x:x² - 5x +6 =0} x² -2x - 3x + 6 = 0 x(x-2)-3(x-2) = 0 (x-3)=0 ;; (x-2)=0 x= 2,3 A = {2, 3} B={2,4} C= {4,5} (B∩C) = {4} A x (B∩C) = {2,3} x {4} = {(2,4), (3,4)}