= cos(x-π/2)/sin(x-π/2)
= (cos(x)cos(π/2) + sin((x)sin(π/2)) / (sin(x)cos(π/2) - cos(x)sin(π/2)
= sin(x)/ (-cos(x)) .... cos(π/2) = 0; sin(π/2) = 1
= -tan(x)
idk if this is right but i tried
Answer:
The correct option is c.
Step-by-step explanation:
It is given that Judy completes a puzzle by herself, it takes her 3 hours.
The part of puzzle completed by Judy in one hour is
.
Rate is a part of word done by a person in one unit of time.
It means the Judy's rate to complete the puzzle is
.
Therefore the correct option is c.
This makes no sense could you rewrite it please
Here's how to rewrite cos^4x tan^2x in the first power of cosine.
See the attached image.
First step, find the trigonometric identity of tan^2x.
Then simply everything until you only get cos x.
Remove all the exponents. Simplify.