3r2 – 14.2 + 11 >
2.
(5 marks]
(x4 – 2x3 - x2 - 4x + 4)
(B) Express
(x - 3)(x2 + 1)
into partial fractions.
[5 marks]
(C) An arithmetic progression (AP) contains 20 terms Given that the sum of the first 8
terms of an AP is 16 more than 3 times the sum of the first 5 terms.
(i) Find the relationship between the first term a and the common difference d.
[2 marks]
Given also that the sum of the last 6 terms is 183. Find the first term a and the
common difference d.
[3 marks)
(D) Solve the system of linear equations using Cramer's rule;
p + 2r = 9
2q + r = 8
4p - 3q = -2.
[5 marks
TTotol. 20​

bulamadım kusura bakmayın

region b will make the inequalities y < 2x + 1 and y > -x - 2 true ⇒ answer a

step-by-step explanation:

* lets study the graph and the inequality to solve the question

- the inequality y > -x - 2

∵ the form of the inequality is y > mx + c , m is the slope of the line

  and c is the y-intercept (the line intersect y-axis at point (0 , c)

∴ c = -2 that means the line intersect the y-axis at point (0 , -2)

∵ the sign of the inequality is >

∴ we shad the part over the line

  region a and b

- the inequality y < 2x + 1

∵ the form of the inequality is y > mx + c , m is the slope of the line

  and c is the y-intercept (the line intersect y-axis at point (0 , c)

∴ c = 1 that means the line intersect the y-axis at point (0 , 1)

∵ the sign of the inequality is <

∴ we shad the part under the line

  region b and c

∵ the common region between the two lines is region b

∴ region b will make the inequalities y < 2x + 1 and y > -x - 2 true