(a) solve the equation –5 sin 20 + 12 cos 20 = 1 for -n < 0 < TI. 72 (b) find the range of function of f (0) : on definition. 5 + 5 sin 0 – 12 cos 0

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter7: Analytic Trigonometry
Section7.2: Trigonometric Equations
Problem 105E
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4. Please do the second part (ii)

(i) Express -5 sih 0 + 12 cos 0 in the form R cos(0 + a), where R>0 and 0<a <
n. Give the value of a correct to 4 decimal places.
IT.
(ii) Hence
(a) solve the equation -5 sin 20 + 12 cos 20 = 1 for -n <0 < Tt.
72
(b) find the range of function of f (0)
on definition.
5 + 5 sin 0 –– 12 cos 0
Transcribed Image Text:(i) Express -5 sih 0 + 12 cos 0 in the form R cos(0 + a), where R>0 and 0<a < n. Give the value of a correct to 4 decimal places. IT. (ii) Hence (a) solve the equation -5 sin 20 + 12 cos 20 = 1 for -n <0 < Tt. 72 (b) find the range of function of f (0) on definition. 5 + 5 sin 0 –– 12 cos 0
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