Find the inverse of 8 modulo 35 (expressed as a residue between 0 and the modulus) or answer 0 if the inverse does not exist
(a) Find the inverse of 7 modulo 13 (expressed as a residue between 0 and the modulus) or answer 0 if the inverse does not exist.
(b) Find the inverse of 8 modulo 35 (expressed as a residue between 0 and the modulus) or answer 0 if the inverse does not exist.
(c) Find the inverse of 3 modulo 100 (expressed as a residue between 0 and the modulus) or answer 0 if the inverse does not exist.
(d) Find the inverse of 15 modulo 18 (expressed as a residue between 0 and the modulus) or answer 0 if the inverse does not exist.
(e) Find the inverse of 42 modulo 43 (expressed as a residue between 0 and the modulus) or answer 0 if the inverse does not exist.