$5. (i) show that: sin 0+sin 20 = tan 0 1+cos 0+cos 20 (ii)Find the general solution of the equation sin 4x + cos 2x = 0 (inSolve for x ,where0 sx aj the equation sin 3x + cos x = 0
$5. (i) show that: sin 0+sin 20 = tan 0 1+cos 0+cos 20 (ii)Find the general solution of the equation sin 4x + cos 2x = 0 (inSolve for x ,where0 sx aj the equation sin 3x + cos x = 0
Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter7: Analytic Trigonometry
Section7.3: The Addition And Subtraction Formulas
Problem 79E
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