1,042 prompts matching "IGCSE Additional Maths Y10: How many points of intersection there are — Worked E"
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Worked example: plotting a complex number on an Argand diagram
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Teach me what a matrix is
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Teach me adding and subtracting matrices
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Worked example: solving simultaneous equations using matrices
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Explain matrices back to me
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Teach me adding and subtracting vectors
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Worked example: finding the angle between two vectors
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Teach me mean, variance and standard deviation
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Solve the logarithmic equation log2(x) + log2(x-2) = 3
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Solve the logarithmic equation log(x+1) - log(x-1) = 2
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Solve the logarithmic equation 2log(x) = log(x+6) + log(4)
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Solve the logarithmic equation log3(x^2) - log3(x+2) = 1
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Solve the logarithmic equation log5(x+3) + log5(2) = 2
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Worked example: differentiate y = 3x^4 - 2x^3 + x - 7
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Worked example: differentiate y = (2x-1)(x+3) after expanding it first
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Worked example: find AB where A = [[1,2],[3,4]] and B = [[2,0],[1,3]]
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Worked example: use matrices to solve the simultaneous equations 2x+y=8 and x-y=1
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Worked example: find A+B and A-B where A = [[1,-2],[3,0]] and B = [[4,1],[-2,5]]
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Worked example: expand (x+2)^5 fully using the binomial theorem
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Worked example: use the binomial expansion to estimate (2.01)^5 to 4 decimal places
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