given:
calculate:
note that the given DFT is from n order and we want to compute DFT's from 2n order.
edit: this is my try of B. i don't see where the given DFT is used and how to proceed:
thanks.
2026-04-12 13:31:00.1776000660
how manipulating the coefficients vector effects on the result of DFT?
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