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(a) Prove that 1- cos 2.x NT = tan x, sin 2.x (b) Hence solve, for 0 < 0 < 2n, 1- cos 20 3sec? 0 – 7 = sin 20 Give your answers in radians to 3 decimal places, as appropriate.

(a) Prove that 1- cos 2.x NT = tan x, sin 2.x (b) Hence solve, for 0 < 0 < 2n, 1- cos 20 3sec? 0 – 7 = sin 20 Give your answers in radians to 3 decimal places, as appropriate.

Elementary Geometry For College Students, 7e
Elementary Geometry For College Students, 7e
7th Edition
ISBN:9781337614085
Author:Alexander, Daniel C.; Koeberlein, Geralyn M.
Publisher:Alexander, Daniel C.; Koeberlein, Geralyn M.
ChapterP: Preliminary Concepts
SectionP.CT: Test
Problem 1CT
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Q3 (Total 8 marks) 9. Turn o 9. P 5 14 O 5 A 0 9 4 4 Leave blank 4. (а) Prove that 1- cos 2x = tan x, sin 2x 2 (3) (b) Hence solve, for 0 < 0 < 2t, 1- cos 20 3sec? 0 – 7 = sin 20 Give your answers in radians to 3 decimal places, as appropriate. (Solutions based entirely on graphical or numerical methods are not acceptable.) (6) 10 P 5 1 4 0 5 A 0 10 4 4 Leave blank DO NOT WRITE IN THIS AREA DO NOT WRITE IN THIS AREA DO NOT WRITE IN THIS AREA DO NOT WRITE IN THIS AREA
Transcribed Image Text:Q3 (Total 8 marks) 9. Turn o 9. P 5 14 O 5 A 0 9 4 4 Leave blank 4. (а) Prove that 1- cos 2x = tan x, sin 2x 2 (3) (b) Hence solve, for 0 < 0 < 2t, 1- cos 20 3sec? 0 – 7 = sin 20 Give your answers in radians to 3 decimal places, as appropriate. (Solutions based entirely on graphical or numerical methods are not acceptable.) (6) 10 P 5 1 4 0 5 A 0 10 4 4 Leave blank DO NOT WRITE IN THIS AREA DO NOT WRITE IN THIS AREA DO NOT WRITE IN THIS AREA DO NOT WRITE IN THIS AREA
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