x # y = xy + x + y ആയാൽ 5#4 - 1#2 എത്ര?
A34
B24
C25
D18
A34
B24
C25
D18
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If p and q are the solutions of the equation aX2 + bx+c=0, where a, b and c are positive numbers, then
If (10a3 + 4b3) : (11a3 - 15b3) = 7 : 5, then (3a + 5b) : (9a - 2b) =?