Encrypt the word COURT using an alphabetic Caesar shift cipher that starts with a shift of 2 (A to C), and shifts one additional space after each character is encrypted. Note: You can use the Caesar cipher to help answer the question. Original A BCD CD GHIJ KLM N KLMN O RSTUVWXY Z TUVW x Y Maps E F GHIJ PQRS z AB To ERYWZ O b EQWTV O c EQTWV d ERYWY

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Q: efine the binary operator @ by:      aa@b=2bb=2b and □□ by:      a□b=a2+b2a□b=a2+b2

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Q: Which of the following is multiplicative inverse of 13mod58? a. 7 b. 8 c. 9 d. 10 a h

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