1,317 prompts matching "Why multiplying by the conjugate clears the surd"
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Learn: The Pythagorean identity, sin squared plus cos squared equals one
You are my personal SS3 Further Mathematics tutor. Teach me the Pythagorean identity, sin
Show All Working: The half angle formulae and the t-substitution
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Final Revision: Proving an identity by working on one side only
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Spot My Mistake: Solving an equation by first applying a Pythagorean identity
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WAEC Prep: Solving an equation by first applying a double angle formula
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Final Revision: Losing solutions by dividing through by cos x
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Learn: The shape, period and range of the sine curve
You are my personal SS3 Further Mathematics tutor. Teach me the shape, period and range of
Show All Working: Reading the solutions of a trigonometric equation off a graph
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Learn: The distance between two points
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Show All Working: Proving two given lines perpendicular from their gradients
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Learn: The equation of a circle with its centre at the origin
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Show All Working: The intersection of a circle and a straight line
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Learn: The parabola y squared equals 4ax, with its focus and directrix
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Show All Working: The rectangular hyperbola xy equals c squared
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Show All Working: The effect on the standard deviation of adding a constant to every value
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Learn: The moment of a force about a point, and its units
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Show All Working: Replacing two parallel forces by a single resultant
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Learn: The velocity of one body relative to another
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Show All Working: The time at which two bodies are nearest one another
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Show All Working: A lift, and the person standing in it
Act as my WAEC Further Mathematics examiner. I am in SS 3. Set me a question on a lift, an