2 Look at the following picture. 000 000 1st term 2nd term 3rd term Prove that the number of matchsticks can be formulated as Un = n² + 3n + 2.

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A: topic -algebra ++=+ +-=- --=+

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A: Given that,P(A) = 0.5P(B) = 0.6P(A and B) = 0.1

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A: since we are given three sides and we have to find weather they form a triangle or not.

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