1,317 prompts matching "Why multiplying by the conjugate clears the surd"
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Worked Example: Squaring a complex number
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Quiz: Writing a complex number in polar form
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Practice: Converting a complex number from polar form back to a plus bi
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WAEC Prep: A quadratic whose roots are 2 plus i and 2 minus i
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WAEC Prep: Solving a quadratic whose discriminant is negative
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Explain Back: Forming a quadratic equation with given complex roots
I have just studied forming a quadratic equation with given complex roots in my SS3 Furthe
WAEC Prep: Differentiating a constant from first principles
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Practice: Differentiating x squared from first principles
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Explain Back: Differentiating one over x from first principles
I have just studied differentiating one over x from first principles in my SS3 Further Mat
WAEC Prep: Differentiating a polynomial with a fractional index
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WAEC Prep: Differentiating a sum of a polynomial and a trigonometric term
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Practice: Differentiating sin x and cos x
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Explain Back: Differentiating tan x
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Worked Example: Differentiating a bracket raised to a power
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WAEC Prep: Integrating a bracket that must be expanded first
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WAEC Prep: Integrating a power of x
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WAEC Prep: Evaluating a definite integral between two limits
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Quiz: A rate of change problem about a vessel filling with water
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WAEC Prep: A body decelerating to rest
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Quiz: Choosing which equation of motion to use
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