755 prompts matching "the change of base formula in a calculation"
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Learn: The formula for the sum of the first n terms of an arithmetic progression
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Common Mistakes: Proving the sum formula by pairing the terms
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Quiz: The formula for the nth term of a geometric progression
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Learn: The formula for the sum of the first n terms of a geometric progression
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Worked Example: Which form of the sum formula to use when r is less than one
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Final Revision: Proving the sum formula for a geometric progression
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IGCSE Additional Maths Y10: A surd arising from the quadratic formula — Show All Working
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IGCSE Additional Maths Y10: A logarithmic equation with the unknown in the base — Common Mistakes
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Rewriting different bases as the same base
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Comparing the size of two large index numbers
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Laws of indices with three different bases in one line
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Explaining why a^1/n means the nth root of a
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Reviewing all the laws of indices before a test
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Simplifying the square root of a larger number
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Estimating the value of a surd
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Surds in the quadratic formula
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Finding n(A union B) using the formula
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Finding the number of terms in an arithmetic series
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Applying the sum to infinity formula when the ratio lies between minus one and one
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Finding a term given the sum of a series
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