Condition for double-sided decaying exponential signal

Q.  Which among the below specified conditions/cases of discrete time in terms of real constant 'a', represents the double-sided decaying exponential signal?
- Published on 30 Nov 15

a. a > 1
b. 0 < a < 1
c. a < -1
d. -1 < a < 0

ANSWER: -1 < a < 0

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    Discussion

  • Tharunkumar   -Posted on 27 May 17
    I want more explanation with suitable examples for better understanding.

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