In the expression "[4 x 3⁵ - 9 x (-7)]" I'm unclear if the "x" is a multiplication sign, or the variable x. I'll assume it is the variable x in my answer.
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.
