Each of the 11 letters A, H, I, M, O, T, U, V, (W, X and Z appears same when looked at in a mi
187 views · Published 13 October 2018 · 3:50 · Indexed 22 September 2026
Channel: Doubtnut · 2018 · Education
To ask Unlimited Maths doubts download Doubtnut from - https://goo.gl/9WZjCW Each of the 11 letters A, H, I, M, O, T, U, V, (W, X and Z appears same when looked at in a mirror. They are called symmetric letters.Other letters in the alphabet are asymmetric letters. How many three letter computer passwords can be formed (no repetition allowed)with at least one symmetric letter?
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