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If , prove that x = f(y).
Given:
Need to prove: x = f(y)
Replacing x by y in the function,
Now, given in the problem that y = f(x)
⇒
⇒ [Proved]
If f(x) = x2 – 3x + 4 and f(x) = f(2x + 1), find the values of x.
If then show that
(i)
(ii)
If then show that f{f(x)} = x.
If f(x) = and then prove that f{(x)} = , when it is given that .
If then show that f [f{f(x)}] = x.
If then show that f(tanθ) = sin 2θ.