755 prompts matching "IGCSE Additional Maths Y11: Proving two lines parallel using vectors — Practice"
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Worked Example: Converting a logarithm to base ten so that tables can be used
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Show All Working: Comparing logarithms given in different bases
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Worked Example: Writing out the terms of a sequence from its nth term
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Show All Working: Deciding whether a given number is a term of a sequence
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Worked Example: Finding the common difference of an arithmetic progression
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Show All Working: Deciding whether a number belongs to a given arithmetic progression
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Worked Example: The alternative sum formula that uses the last term
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Worked Example: Finding the common ratio of a geometric progression
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Show All Working: A geometric progression with a fractional common ratio
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Worked Example: Which form of the sum formula to use when r is less than one
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Show All Working: The sum to infinity of a geometric progression, and when it exists
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Worked Example: Adding or subtracting the same number on both sides
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Show All Working: Writing the solution of an inequality as a set
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Worked Example: The critical values of a quadratic inequality
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Show All Working: Writing a quadratic solution set in interval form
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Worked Example: Solving the equation modulus of x equals a
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Zero index rule
I am in SS 1. I'm going to explain the zero index rule, showing why any nonzero number rai
Solving index equations with matching bases
I am in SS 1. I'm going to explain solving an index equation by rewriting both sides with
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