In , the value of cannot exceed . Letters have their usual…

MATHEMATICS · Single correct · CBSE · Mathematics · Trigonometric Functions · Trigonometric Functions

Problem

In

\triangle ABC

, the value of

c\cos(A-\theta)+a\cos(C+\theta)

cannot exceed

(\theta\in(0,2\pi))

. Letters have their usual meanings. (1)

a

(2)

b

(3)

c

(4)

s

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