Download the app

Questions  

Let f be a function satisfying 2f(x)3f(1/x)=x2 for any x0. Then the value of f(2) is 

a
-2
b
-74
c
-78
d
4

detailed solution

Correct option is B

2f(2)−3f(1/2)=22=42f(1/2)−3f(2)=(1/2)2=1/4⇒ 5(f(2)−f(1/2))=4−1/4=15/4⇒ f(1/2)=f(2)−3/4.So     2f(2)−3[f(2)−3/4]=4⇒      f(2)=94−4=−74

Talk to our academic expert!

+91

Are you a Sri Chaitanya student?


Similar Questions

Letfx=a2-5a+4x3-6a2-5a+1x-tanx(sgnx) be an even function for all xR. Then the sum of all possible values of a is (where [.] and {.} denote greatest integer function and fractional part function, respectively)


phone icon
whats app icon