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ILL GIVE YOU BRAINLIEST!!!!!!!which expression is equivalent to cos(1.4x)-cos(0.6x)?

A: -2sin x sin(0.4x)
B: 2sin x sin(0.4x)
C: -2cos x cos(0.4x)
D: 2cos x cos(0.4x)

ILL GIVE YOU BRAINLIESTwhich expression is equivalent to cos14xcos06x A 2sin x sin04x B 2sin x sin04x C 2cos x cos04x D 2cos x cos04x class=

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lexisslayyperidtt

Answer:

B

Step-by-step explanation:

websitetechie

Answer:

A. -2sin x sin(0.4x)

Explanation:

I got it correct in my test :)

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