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12 July, 22:39

Which expression is equivalent to tan (-x) cos2x? A. - sin xcos x. B. sin xcos x. C. tan x + sin2x. D. tan x - sin2x. E. - tan x - sin2x.

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  1. 12 July, 22:45
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    The expression that is equivalent to tan (-x) cos2x is tan x - sin2x. The correct answer between all the choices given is the fourth choice or letter D. I am hoping that this answer has satisfied your query about this specific question.
  2. 12 July, 23:00
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    The equivalent of tan (-x) cos 2x among the choices can be determined by substituting a value of x. For example, x is equal to 1. The value of tan (-1) cos (2*1) is 0.6481. we substitute 1 to each of the choices. The trigonometric terms with the same answer is D. tan (-1) cos (2*1) is also 0.6481. Answer is D.
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