Question 1
Using calculus, find the coordinates of the stationary point on the curve with equation
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Using calculus, find the coordinates of the stationary point on the curve with equation
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Complete the table below with the value of y corresponding to x = 1.3, giving your answer to 4 decimal places.
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| x | 1 | 1.1 | 1.2 | 1.3 | 1.4 | 1.5 |
| y | 0.7071 | 0.7591 | 0.8090 | 0.9037 | 0.9487 |
Use the trapezium rule, with all the values of y in the completed table, to obtain an approximate value for
giving your answer to 3 decimal places. You must show clearly each stage of your working.
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Find the first 4 terms, in ascending powers of x, of the binomial expansion of
giving each term in its simplest form.
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f(x) = ax3 – 11x2 + bx + 4, where a and b are constants. When f(x) is divided by (x – 3) the remainder is 55 When f(x) is divided by (x + 1) the remainder is –9
Find the value of a and the value of b.
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Given that (3 x + 2) is a factor of f(x),
factorise f(x) completely.
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The first three terms of a geometric series are 4 p, (3 p + 15) and (5 p + 20) respectively, where p is a positive constant.
Show that 11p2 – 10p – 225 = 0
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Find the common ratio of this series.
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Find the sum of the first ten terms of the series, giving your answer to the nearest integer.
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Given that log3 x = a, find in terms of a,
giving each answer in its simplest form.
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Solve, for x,
giving your answer to 4 significant figures.
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The line with equation y = 10 cuts the curve with equation y = x2 + 2x + 2 at the points A and B as shown in Figure 1. The figure is not drawn to scale.
Find by calculation the x-coordinate of A and the x-coordinate of B.
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The shaded region R is bounded by the line with equation y = 10 and the curve as shown in Figure 1.
Use calculus to find the exact area of R.
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Figure 2 shows the design for a triangular garden ABC where AB = 7 m, AC = 13 m and BC = 10 m. Given that angle BAC = radians,
show that, to 3 decimal places, = 0.865
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The point D lies on AC such that BD is an arc of the circle centre A, radius 7 m. The shaded region S is bounded by the arc BD and the lines BC and DC. The shaded region S will be sown with grass seed, to make a lawned area. Given that 50 g of grass seed are needed for each square metre of lawn,
find the amount of grass seed needed, giving your answer to the nearest 10 g.
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Solve, for 0 180
giving your answers to 1 decimal place.
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Find all the values of x, in the interval 0 x
360
, for which
giving your answers to 1 decimal place.
You must show clearly how you obtained your answers.
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