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A level maths formulae questions and answers with complete solutions
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A level maths formulae questions and answers with complete solutions arithmetic sequence geometric sequence sum of arithmetic sequence 1 n/2(2a + (n-1)d) sum of arithmetic sequence 2 n/2(a + l) (l= last term) sum of geometric sequence sum to infinity 2π 360 degrees 1 radian 180/π π 1...
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