Use a truth table to valid DeMorgan’s Law ~[(p ⋀ q) ⋁ r] ≡ (~p ⋁~q) ⋀ ~r

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What is the relationship between all triangles that can be drawn given the same three angles

The sum of the first eight terms of an arithmetic progression is 9m + 14. the fifth term of the06 progression is 2m - 6, where m is a constant. given that the first term of the progression is 26,find the value of the common difference, d and thevalue of m.