Q7 of 73 Page 126

Let f : R⁺ → R : f(x) = log_e x. Find {x : f(x) = –2}.

Given, f : R⁺ → R : f(x) = log_e x

f(x) = -2

log_e x = -2

Taking antilog on both sides

x =

Hence , the value of x for which f(x) = -2 is .

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