Consider the signal x(n), given below :

$x (n)$ can be expressed as $a u [b n + c]$ . Then the value of $a + b + c =$ ___
0

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Solution

The correct option is A 0

$a u (b n + c) = - u (- n + 2)$

$∴ a = - 1;$

b = -1;

c = 2

$∴ a + b + c = - 1 - 1 + 2 = 0$

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