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Let f(x)=a, cos (a, + x)+a, cos(a, + x) + .....+ a, cos(a, +x). If f(x) vanishes for x 0 and x= x, (where x, k T, k e Z ), then A) a, cos a, +az cos ɑ, +.....+a, cosa,= 0 C) f(x)=0 has only two solutions 0,x B) a, sin a, + a, sin a, +.+ a, sin a, = 0 D) f(x) is identically zero V x

Let f(x)=a, cos (a, + x)+a, cos(a, + x) + .....+ a, cos(a, +x). If f(x) vanishes for x 0 and x= x, (where x, k T, k e Z ), then A) a, cos a, +az cos ɑ, +.....+a, cosa,= 0 C) f(x)=0 has only two solutions 0,x B) a, sin a, + a, sin a, +.+ a, sin a, = 0 D) f(x) is identically zero V x

Trigonometry (11th Edition)
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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Let f(x)=a, cos (a, +x)+ a, cos(a, +x)+. If f(x) vanishes for x 0 and x= x (where x, k r, k e Z ), then cos(a, + x). CoS .....+ +a, cos ɑ, = 0 C) f(x)=0 has only two solutions 0,x A) a, cos a, +az cos a, +..... B) a, sin a, + az sin a, +.. .+a, sin a, = 0 D) f(x) is identically zero V x %3D
Transcribed Image Text:Let f(x)=a, cos (a, +x)+ a, cos(a, +x)+. If f(x) vanishes for x 0 and x= x (where x, k r, k e Z ), then cos(a, + x). CoS .....+ +a, cos ɑ, = 0 C) f(x)=0 has only two solutions 0,x A) a, cos a, +az cos a, +..... B) a, sin a, + az sin a, +.. .+a, sin a, = 0 D) f(x) is identically zero V x %3D
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