755 prompts matching "Explain the zero matrix in matrix algebra"
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Worked Example: Testing a*b against b*a for a given rule
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Worked Example: Rewriting a negative index as a fraction
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Worked Example: Solving an indicial equation where one side must be factorised first
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Worked Example: Writing an index statement as a logarithm
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Worked Example: The law for the logarithm of a quotient
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Worked Example: Converting a logarithm to base ten so that tables can be used
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Worked Example: The alternative sum formula that uses the last term
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Worked Example: Which form of the sum formula to use when r is less than one
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Solving index equations with matching bases
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Simplifying a fraction of two bracketed index terms
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Solving 4^x = 8^(x-1) by matching bases
I am in SS 1. I'm going to explain solving the equation 4^x = 8^(x-1) by writing both side
Verifying an index law with numbers
I am in SS 1. I'm going to explain verifying that a^m divided by a^n equals a^(m-n) using
Evaluating (1/2)^-3 without a calculator
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Index expression with three unknown letters
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Adding and subtracting like surds
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Rationalising a denominator with a surd and integer
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Distinguishing rational and irrational numbers
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Simplifying nested surds
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Rationalising a denominator with three surd terms
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Union and intersection of two number sets
I am in SS 1. I'm going to explain finding the union and intersection of two given sets of