1.

What is a convolution sum?

A. ‚àëx[k]h[n-k], k from -‚àû to +‚àû
B. ‚àëx[k]*‚àëh[n-k], k from -‚àû to +‚àû
C. ‚àëx[k]+‚àëh[n-k], k from -‚àû to +‚àû
D. ‚àë‚àëx[k]h[n-k], k from -‚àû to +‚àû
Answer» B. ‚Äö√Ñ√∂‚àö‚Ć‚àö¬¥x[k]*‚Äö√Ñ√∂‚àö‚Ć‚àö¬¥h[n-k], k from -‚Äö√Ñ√∂‚àö‚Ć‚àö¬™ to +‚Äö√Ñ√∂‚àö‚Ć‚àö¬™


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