Most Important Selected Qs for JEE AdvancedMathematicsTrigonometry
If 2 ^2 ( 2 ^2 x )=1- ( 2 x), x (2 n+1) 2 , n I , then
Options
- A2 x is 3 5
- B2 x is 1 2
- Cx is 1 2
- Dx is 1 3
Correct answer
C. x is 1 2
Step-by-step solution
aligned & We have 2 ^2 ( 2 ^2 x )=2 ^2 ( 2 2 x ) & ^2 x= 2 x x( x-2 x)=0 & 1-2 x=0 as x 0 & x= 1 2 and 2 x= 3 5 aligned