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Define tautology and contradiction.
Ans: If a compound proposition comprises two atomic propositions as components, after that the truth table for the compound proposition consists of four entries. These four entries might be all T, may be all F, might be one T and three F and etc. There are in total 16 (24) probabilities. The possibilities while all entries in the truth table is T, involves that the compound proposition is all time true. This is called tautology.
Though, when all the entries are F, it implies that the proposition is never true. This situation is considered as contradiction.
1/2+1/2
Add 1011 and 1101 in base 2
f(x)=sin x+cos x in the interval {0,90}
What is Converse, Inverse, and Contrapositive In geometry, many declarations are written in conditional form "If ...., then....." For Example: "If two angles are right angles,
How do you solve (17+w)^2 + w^2 = (25+w)^2
y=3x^2+12+11
one half y minus 14
Sequences and Series In this section we will be taking a look at sequences and infinite series. In fact, this section will deal approximately exclusively with series. Though
A worker retires with a lump sum superannuation benefit of $500,000. She immediately invests this money in a fund earning 5% pa effective. One year after retirement she begins maki
1+2x
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