- #1
sankalpmittal
- 785
- 26
Homework Statement
Find the domain of following functions : Note: [.] denotes greatest integer function. {.} denotes fractional part of a function.
1. f(x)=sin-1([x]/{x})
2. √(2{x}2-3{x}+1)
3. Solve the equation :
y=[sinx+[sinx+[sinx]]]/3
[y+[y]]=2cosx
Homework Equations
The Attempt at a Solution
1. For this function to exist,
-1≤[x]/{x}≤1
As 0≤{x}<1
-{x}≤[x]≤{x}
Now [x]=x-{x}
So
0≤x≤2{x}
Now ??
2. For this to exist,
2{x}2-3{x}+1≥0
From here I found values of {x} but to no avail.
3. I do not know how to proceed. :(
Please help !
Thanks in advance...