11/2-{2/5 of 5/6+(7+7/4)}
1-{
(1/9)+(1/6561)+(1/729)+(1/81)
¬((p ∧ ¬q) → ¬(p ↔ q)) ≡ p ∧ ¬q ∧ r solve this using equivalence laws in discrete math
in how many ways can the letter deterrant can be arranged so that repeated are never together
12.56 x 68.0625
Prove that (AUB)= A∩B
In how many ways can 5 boys and 4 girls be arranged in a row such that no two girls are adjacent?
3 - 3 xy 6 + 2=
3 - 3 x 6 + 2=
