1,473 prompts matching "WAEC exam prep: Evaluating a series written in sigma notation"
Worked example: Multiplying two numbers in base five
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Worked example: Deriving the negative index from the division law
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Exam timing: A timed set of index law simplifications
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Worked example: An indicial equation solved with logarithms
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Exam timing: A timed set of indicial equations
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Worked example: A two-step problem needing two ratios
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Worked example: Finding the height of a mast from its angle of elevation
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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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Worked example: The number of elements in a set
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Worked example: The formula for the number in a union
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Worked example: The converse, inverse and contrapositive
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Worked example: Changing the subject when the letter occurs on both sides
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Worked example: Using the constant to predict a further value
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Worked example: Solving by setting each factor to nought
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Worked example: Substituting into the quadratic formula carefully
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Exam timing: A timed set of formula and completing-the-square questions
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Worked example: Solving a related equation by adding a line to the graph
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Exam timing: A timed set of questions on drawing quadratic graphs
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