Most Important Selected Qs for JEE AdvancedMathematicsBasics of Mathematics
Paragraph: If a x b then 1 a 1 x 1 ~b provided a & ~b are of same sign but if a and b are of opposite sign then 1 x (- , 1 a ] [ 1 ~b ,- ) . On the basis of above information, answer the following : Question: If 2 3 x 4 5 then 4-3 x x belongs to -
Options
- A[-3,-2]
- B[2,3]
- C[ 1 3 , 1 2 ]
- D[- 1 2 ,- 1 3 ]
Correct answer
B. [2,3]
Step-by-step solution
2 3 x 4 5 3 2 1 x 5 4 6 4 x 5 3 4 x -3 2 2 4-3 x x 3