Answer all of 10 P8Find the values of x in the interval −180° ≤ x ≤ 180° that satisfy4 cos²x - 5 sin x − 5 = 0.9 ab10 abGiven that 6 sin² x + cos x = 4, find the exact values of cos x.Hence solve the equation 6 sin² x + cos x = 4 for 0° ≤ x ≤ 360° giving youranswers to 3 significant figures.Show that the equation 2 sin² xform 2 tan² x 3 tan x + 1 = 0.Hence solve the equation 2 sin² xthe interval -180° < x < 180°.3 sin x cos x + cos²x = 0 can be written in the3 sin x cos x + cos²x =0 giving all solutions in

Answered: Image /qna-images/answer/492c090c-e8ce-455a-a55f-ff645da1487e.jpg

P 10 a b answers to 3 significant figures. Show that the equation 2 sin² x - 3 sin x cos x + cos²x = 0 can be written in the form 2 tan²x-3 tanx+1=0. Hence solve the equation 2 sin²x − 3 sin x cos x + cos²x = 0 giving all solutions in the interval -180° < x < 180°.

P 10 a b answers to 3 significant figures. Show that the equation 2 sin² x - 3 sin x cos x + cos²x = 0 can be written in the form 2 tan²x-3 tanx+1=0. Hence solve the equation 2 sin²x − 3 sin x cos x + cos²x = 0 giving all solutions in the interval -180° < x < 180°.

Trigonometry (11th Edition)

11th Edition

ISBN:9780134217437

Author:Margaret L. Lial, John Hornsby, David I. Schneider, Callie Daniels

Publisher:Margaret L. Lial, John Hornsby, David I. Schneider, Callie Daniels

Chapter1: Trigonometric Functions

Section: Chapter Questions

Problem 1RE: 1. Give the measures of the complement and the supplement of an angle measuring 35°.

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Question

Answer all of 10

P
8
Find the values of x in the interval −180° ≤ x ≤ 180° that satisfy
4 cos²x - 5 sin x − 5 = 0.
9 a
b
10 a
b
Given that 6 sin² x + cos x = 4, find the exact values of cos x.
Hence solve the equation 6 sin² x + cos x = 4 for 0° ≤ x ≤ 360° giving your
answers to 3 significant figures.
Show that the equation 2 sin² x
form 2 tan² x 3 tan x + 1 = 0.
Hence solve the equation 2 sin² x
the interval -180° < x < 180°.
3 sin x cos x + cos²x = 0 can be written in the
3 sin x cos x + cos²x =
0 giving all solutions in

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