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Simplify the following, where k represents any integer: cos(2kpi-x)(-sin(2kpi-x)) a. -cosx*sinx b. (1/2)sin(2x) c. cos((1/2)x)^2 d. cos(x)^2*sin(x)^2 e. undefined

Simplify the following, where k represents any integer: cos(2kpi-x)(-sin(2kpi-x)) a. -cosx*sinx b. (1/2)sin(2x) c. cos((1/2)x)^2 d. cos(x)^2*sin(x)^2 e. undefined
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Simplify the following, where k represents any integer: cos(2kpi-x)(-sin(2kpi-x))

a. -cosx*sinx
b. (1/2)sin(2x)
c. cos((1/2)x)^2
d. cos(x)^2*sin(x)^2
e. undefined

asked
User Kluyg
by
8.1k points

1 Answer

3 votes
= cos( -x ) * [ - sin( - x ) ] = cosx * sinx ;
cosx * sin x is the right answer !
answered
User Matthew Sielski
by
8.8k points
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