Gmdss_e3 : Element 3 - 267/605
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| What are the principal frequencies that appear at the output of a mixer circuit? |
| A) Two and four times the original frequency. |
| B) The sum, difference and square root of the input frequencies. |
| C) The original frequencies and the sum and difference frequencies. |
| D) 1.414 and 0.707 times the input frequency. |
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