1,476 prompts matching "IGCSE practice: Where tan x takes the value nought"
Teach me: What the base of a number system means
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Practice set: Converting directly between base two and base eight
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Teach me: Why adding indices multiplies powers of the same base
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Worked example: Deriving the negative index from the division law
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Teach me: Naming the opposite, adjacent and hypotenuse
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Teach me: The exact ratios for 30 and 60 degrees
You are my personal SS1 Mathematics tutor. Teach me the exact ratios for 30 and 60 degrees
Worked example: The reference angle for an angle beyond 90 degrees
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Teach me: The shape and period of the sine and cosine curves
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Worked example: Finding the height of a mast from its angle of elevation
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Teach me: A logarithm as the index a base must be raised to
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Worked example: Using the power law to simplify a logarithmic expression
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Teach me: The characteristic and the mantissa
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Worked example: The shape of a logarithmic graph
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Practice set: Adding and subtracting in modular arithmetic
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Worked example: Bringing a negative number into the right residue class
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Nigerian scenario: Market days and the days of the week as modular cycles
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Worked example: The number of elements in a set
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Teach me: All the members of two sets together
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Worked example: The formula for the number in a union
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Practice set: Conjunction, and when it is true
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