807 prompts matching "Arithmetic progression: sum of n terms"
Worked example: Converting a number with a fractional part to base ten
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Worked example: Multiplying two numbers in base five
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WAEC pitfalls: Carrying as though the base were ten
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Worked example: Deriving the negative index from the division law
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WAEC pitfalls: Applying a law to bases that are not the same
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Worked example: An indicial equation solved with logarithms
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WAEC pitfalls: Equating indices when the bases have not been matched
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Worked example: A two-step problem needing two ratios
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WAEC pitfalls: Labelling the sides relative to the wrong angle
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Worked example: The reference angle for an angle beyond 90 degrees
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WAEC pitfalls: Quoting a special angle ratio as a decimal when an exact value is asked for
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Worked example: Using the power law to simplify a logarithmic expression
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WAEC pitfalls: A negative characteristic written the wrong way
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Worked example: Bringing a negative number into the right residue class
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WAEC pitfalls: Reducing to a residue outside the permitted range
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WAEC pitfalls: Writing a set with its elements repeated
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Worked example: The formula for the number in a union
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WAEC pitfalls: Counting the overlap twice in a union
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Worked example: The converse, inverse and contrapositive
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WAEC pitfalls: Negating a statement containing all or some
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