99 Percentile Qs Bank for JEE MainMathematicsBasics of Mathematics
The set x R : 16 (2^X )>16^ -1 x =
Options
- Ax R : x >0
- Bx R : x < 0
- CR
- Dx R : x>2
Correct answer
A. x R : x >0
Step-by-step solution
aligned & 16 (2^x )>16^ - 1 x 2^ x+4 >2^ -4 / x & x+4>-4 / x x^2+4 x+4>0 & (x+2)^2>0 aligned which is true for all x R