1,334 prompts matching "Expressing the answer in the form a plus b root c"
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Spot My Mistake: The standard deviation of an ungrouped set of data
Act as my SS3 Further Mathematics tutor. Work a question on the standard deviation of an u
Show All Working: Replacing two parallel forces by a single resultant
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Quiz: Relative velocity when the two motions are at right angles
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Spot My Mistake: An aeroplane in a cross-wind, and its resultant track
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WAEC Prep: The conical pendulum
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WAEC Prep: The simple pendulum as an example of simple harmonic motion
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Spot My Mistake: A particle hanging in equilibrium on an elastic string
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WAEC Prep: Two elastic strings supporting one particle
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Spot my mistake: Assuming multiplying a vector by a negative scalar leaves its magnitude negative
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Spot my mistake: Treating any vector with small components as a unit vector
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Spot my mistake: Using an equation of constant acceleration on a body whose acceleration is changing
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Inequality word problem with a real-life constraint
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Factorising an expression with a common algebraic bracket factor
I am in SS 3. Teach me factorising an expression where the common factor is itself a brack
Evaluating a function at a given value
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Evaluating a function at a negative value
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Domain of a simple algebraic function
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Mapping diagrams and function types
I am in SS 3. I'm going to explain how a mapping diagram represents a function, and identi
Verifying an inverse function is correct
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Domain and range of an inverse function
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Graphs of a function and its inverse as reflections
I am in SS 3. Teach me why the graph of a function and the graph of its inverse are reflec