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Pregunta 1 Informe
For what range of values of x is x\(^2\) - 2x - 3 ≤ 0
Pregunta 2 Informe
In △PQR, \(\overline{PQ}\) = 5i - 2j and \(\overline{QR}\) = 4i + 3j. Find \(\overline{RP}\).
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Pregunta 3 Informe
The gradient ofy= 3x\(^2\) + 11x + 7 at P(x.y) is -1. Find the coordinates of P.
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Pregunta 5 Informe
Given that P = { x: 0 ≤ x ≤ 36, x is a factor of 36 divisible by 3} and Q = { x: 0 ≤ x ≤ 36, x is an even number and a perfect square}, find P n Q.
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Pregunta 7 Informe
If α and β are the roots of 3x\(^2\) - 7x + 6 = 0, find \(\frac{1}{α}\) + \(\frac{1}{β}\)
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Pregunta 8 Informe
Find the inverse of \(\begin{pmatrix} 4 & 2 \\ -3 & -2 \end{pmatrix}\)
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Pregunta 9 Informe
If ( 1- 2x)\(^4\) = 1 + px + qx\(^2\) - 32x\(^3\) + 16\(^4\), find the value of (q - p)
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Pregunta 10 Informe
A committee consists of 6 boys and 4 girls. In how many ways can a sub-committee consisting of 3 boys and 2 girls be formed if one particular boy and one particular girl must be on the sub-committee?
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Pregunta 11 Informe
Consider the following statements:
X: Benita is polite
y: Benita is neat
z: Benita is intelligent
Which of the following symbolizes the statement: "Benita is neat if and only if she is neither polite nor intelligent"?
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Pregunta 12 Informe
A stone is thrown vertically upward and distance, S metres after t seconds is given by S = 12t + \(\frac{5}{2t^2}\) - t\(^3\).
Calculate the distance travelled in the third second.
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Pregunta 13 Informe
If f(x) = 4x\(^3\) + px\(^2\) + 7x - 23 is divided by (2x -5), the remainder is 7. find the value of p
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Pregunta 14 Informe
Using binomial expansion of ( 1 + x)\(^6\) = 1 + 6x + 15x\(^2\) + 20x\(^3\) + 6x\(^5\) + x)\(^6\), find, correct to three decimal places, the value of (1.998))\(^6\)
Pregunta 15 Informe
If 2i +pj and 4i -2j are perpendicular, find the value of p.
Pregunta 16 Informe
A bag contains 8 red, 4 blue and 2 green identical balls. Two balls are drawn randomly from the bag without replacement. Find the probability that the balls drawn are red and blue.
A. 12/91 B. C. D.
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Pregunta 17 Informe
Three forces, F\(_1\) (8N, 030°), F\(_\2) (10N, 150° ) and F\(_\3) ( KN, 240° )are in equilibrium. Find the value of N
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Pregunta 18 Informe
If √5 cosx + √15sinx = 0, for 0° < x < 360°, find the values of x.
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Pregunta 19 Informe
A stone is thrown vertically upward and distance, S metres after t seconds is given by S = 12t + \(\frac{5}{2t^2}\) - t\(^3\).
Calculate the maximum height reached.
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Pregunta 20 Informe
A body of mass 15kg is placed on a smooth plane which is inclined at 60° to the horizontal. If the box is at rest,
calculate the normal reaction to the plane. [ Take g = 10m/s\(^2\) ]
Pregunta 21 Informe
Find the equation of the normal to the curve y= 2x\(^2\) - 5x + 10 at P(1, 7).
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Pregunta 22 Informe
A fair die is tossed 60 times and the results are recorded in the table
| Number of die | 1 | 2 | 3 | 4 | 5 | 6 |
| Frequency | 15 | 10 | 14 | 2 | 8 | 11 |
Find the probability of obtaining a prime number.
Pregunta 23 Informe
A binary operation * is defined on the set of real numbers, R, by
P * q = \(\frac{q^2 - p^2}{2pq}\). Find 3 * 2
Pregunta 24 Informe
In how many ways can 8 persons be seated on a bench if only three seats are available?
Pregunta 26 Informe
Simplify \(\frac{1}{3}\) log8 + \(\frac{1}{3}\) log 64 - 2 log6
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Pregunta 27 Informe
Find the value of the derivative of y = 3x\(^2\) (2x +1) with respect to x at the point x = 2.
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Pregunta 28 Informe
For what value of k is 4x\(^2\) - 12x + k, a perfect square?
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Pregunta 29 Informe
If \(\frac{15 - 2x}{(x+4)(x-3)}\) = \(\frac{R}{(x+4)}\) \(\frac{9}{7(x-3)}\), find the value of R
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Pregunta 30 Informe
Given that f: x --> x\(^2\) - x + 1 is defined on the Set Q = { x : 0 ≤ x < 20, x is a multiple of 5}. find the set of range of F.
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Pregunta 31 Informe
Given that \( M = \begin{pmatrix} 3 & 2 \\ -1 & 4 \end{pmatrix} \) and \( N = \begin{pmatrix} 5 & 6 \\ -2 & -3 \end{pmatrix} \), calculate \( (3M - 2N) \)
Pregunta 32 Informe
Simplify ( \(\frac{1}{2 - √3}\) + \(\frac{2}{2 + √3}\) )\(^{-1}\)
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Pregunta 34 Informe
The table shows the distribution of marks obtained by some students in a test
| Marks | 0-9 | 10-19 | 20-29 | 30-39 | 40-49 |
| Frequency | 4 | 12 | 16 | 6 | 2 |
Find the modal class mark.
Pregunta 35 Informe
The first term of an AP is 4 and the sum of the first three terms is 18. Find the product of the first three terms
Pregunta 36 Informe
The table shows the distribution of marks obtained by some students in a test
| Marks | 0-9 | 10-19 | 20-29 | 30-39 | 40-49 |
| Frequency | 4 | 12 | 16 | 6 | 2 |
What is the upper class boundary of the upper quartile class?
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Pregunta 37 Informe
If sin x = \(\frac{12}{13}\) and sin y = \(\frac{4}{5}\), where x and y are acute angles, find cos (x + y)
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Pregunta 38 Informe
Find the radius of the circle 2x\(^2\) - 4x + 2y\(^2\) - 6y -2 = 0.
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