Prime DSE Series - Mathematics Mock Exam Papers (Compulsory)(Sixth Edition) Set 2 Paper 1&2

9 HKDSE-MATH-CP (Set 2 P2) © United Prime Educational Publishing (HK) Ltd. Go on to the next page 23. In the figure, ABCD is a rectangle. E is a point lying on AD . Which of the following must be true? I. sin cos CE BD a b = II. cos sin CE BD a b = III. tan tan AD ED : a b = A. I only B. II only C. I and III only D. II and III only 24. The coordinates of the point P are ( - 7, 4). P is rotated anticlockwise about the origin through 90° to the point Q . Q is then reflected with respect to the y -axis to the point R . Find the x -coordinate of R . A. - 7 B. - 4 C. 4 D. 7 25. Find the constant k such that the straight lines x y k 8 12 9 - = and x ky 6 7 + = do not intersect each other. A. - 9 B. - 4 C. 4 D. 9 B A C E D a b Sample © United Prime Educational Publishing (HK) Limited 2025 All rights reserved; no part of this publication may be reproduced, photocopied, recorded or otherwise, without the prior written permission of the Publisher.