Q.
Let fx=x-2 and g(x)=f(f(f……(f(x)))…)⏟(n times ). If equation gx=k, k∈0,2 has 8 distinct solutions than value of n is equal to
see full answer
Talk to JEE/NEET 2025 Toppers - Learn What Actually Works!
Real Strategies. Real People. Real Success Stories - Just 1 call away
An Intiative by Sri Chaitanya
a
3
b
4
c
5
d
8
answer is B.
(Unlock A.I Detailed Solution for FREE)
Ready to Test Your Skills?
Check your Performance Today with our Free Mock Test used by Toppers!
Take Free Test
Detailed Solution
If n=1 then fx =x-2 , number of solutions =2 ; If n=2 then ffx=x-2-2 , number of solutions =4 ;If n=3 then fffx=x-2-2-2, number of solutions =6; If n=4 then ffff = x-2-2-2-2 ,number of solutions =8;
Watch 3-min video & get full concept clarity