Solution-
We have given the function as
....(1)
Now, let find the value of f(x) for different values of x.
(a) For f(2)
Putting x =2 in equation (1), we get
On simplifying it,we get
Or
Hence, f(2) = 21
(b) For f(-1)
Putting x = -1 in equation (1), we get
On simplifying it,we get
Or
Hence, f(-1) = 3
(c) For f(- x)
On replacing x by -x in equation (1), we get
On simplifying it,we get
Hence,
(d) For f(3a)
On replacing x by 3a in equation (1), we get
On simplifying it,we get
Or
Hence,
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