ethanyayger
23.06.2019 •
Mathematics
If f(x) = 1 – x, which value is equivalent to |f(i)|?
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Ответ:
Option 3
Step-by-step explanation:
We are given that
f(x) = 1-x
To find out f(i) we replace x by i
f(i) = 1-i
Thus this is a complex number with real part = 1 and imaginary part =-1
Modulus of f(i) = |1-i| =
Thus answer is option C
square root of 2
Ответ:
Option C is correct
value is equivalent to |f(i)|
Step-by-step explanation:
Modulus of the complex number z = a+ib is given by:
As per the statement:
Given the function:
Substitute x = i we have;
; where, i is the imaginary part.
We have to find |f(i)|.
By definition of modulus;
⇒
⇒
Therefore, the value of |f(i)| is,
Ответ:
3
Step-by-step explanation: