1,045 prompts matching "Learn: The meaning of n choose r, and how to evaluate it"
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Worked example: find the centre and radius of the circle x^2+y^2-4x+6y-3=0
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Worked example: find the modulus and argument of 3+4i
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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 the magnitude of the vector (3,4)
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Worked example: find the unit vector in the direction of (6,8)
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Worked example: how many distinct arrangements are there of the letters in the word MISSISSIPPI
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Worked example: write the converse, inverse and contrapositive of 'if a number is even, then it is divisible by 2'
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Real-life application of the factor theorem
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Real-life application of the condition for a line to be tangent to a curve
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Practice: The value of alpha to the fourth plus beta to the fourth
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WAEC Prep: Dividing by a factor of the form ax plus b
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Common Mistakes: The degree of the quotient and of the remainder
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Practice: Showing that x plus 3 is a factor of a given polynomial
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WAEC Prep: The factor theorem for a factor of the form ax plus b
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Show All Working: What the factor theorem says about the roots
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Practice: Factorising a quartic as the product of two quadratics
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WAEC Prep: Factorising the difference of two cubes
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Common Mistakes: Writing the converse, inverse and contrapositive of one statement
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Common Mistakes: The number of ways of dividing a class into groups
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Show All Working: The binomial coefficients written as n choose r
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