#logarithm#how to find logarithm of number without using numbers#@tmath247
10:02
#how to find sum of a geometric progression@tmath247.
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#Quadratic equation#completing the square method#tmath247
5:11
#quadraticequation#how to solve questions on word problem leading to quadratic equation#@tmath247
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#quadraticequation#howtosolvewordproblemleadingtoquadraticequation@tmath247
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polygon#sum of interior angles of a polygon,how to calculate angles of a polygon@tmath247
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#quadratic equation#quadritc equation by factorization method#
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Algebraic process;Solving equation@tmath247
7:29