755 prompts matching "IGCSE Additional Maths Y11: Proving an identity by working from the harder side"
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Show All Working: Finding a and b when a plus b root 2 equals a given surd
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Show All Working: Showing a set is not closed by a single counter-example
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Show All Working: An operation that is associative but not commutative
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Show All Working: Using distributivity to simplify an expression
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Worked Example: Finding the identity element from a rule such as a*b = a + b - 3
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WAEC Prep: The inverse of the identity element itself
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Show All Working: An element with no inverse under a given operation
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Show All Working: Simplifying an expression with letters and indices
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Show All Working: Simplifying an expression that mixes the index types
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Show All Working: A word problem that leads to an indicial equation
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Spot My Mistake: A sequence defined by a recurrence relation
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Spot My Mistake: A compound interest problem modelled by a geometric progression
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WAEC Prep: A population growth problem modelled by a geometric progression
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Show All Working: The sum to infinity of a geometric progression, and when it exists
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Final Revision: Proving the sum formula for a geometric progression
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Quiz: Multiplying both sides by a positive number
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Practice: Reversing the sign when multiplying by a negative number
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Show All Working: Writing the solution of an inequality as a set
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WAEC Prep: Shading the region defined by a linear inequality
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Adding and subtracting like surds
I am in SS 1. I'm going to explain adding and subtracting surds that share the same irrati