So there is an identity we'll need to use to solve this:
cos(x+y) = cosxcosy - sinxsiny
replace the numerator with the right hand side of that identity and we get:
(cosxcosy - sinxsiny)/cosxsiny
Separate the numerator into 2 fractions and we get:
cosxcosycosxsiny- sinxsiny/cosxsiny
the cosx's cancel on the left fraction, the siny's cancel on the right fraction and we're left with:
cosy/siny - sinx/cosx
which simplifies to:
coty - tanx
Answer: 200
Step-by-step explanation: all you have to is multiply 50 by 4 because 25 is a forth of 100% and 50 x 4 = 200.
Answer: D
Step-by-step explanation:
Answer:
The answer is 16 in. sq.
Step-by-step explanation:
I hope this helps! Have a great rest of your day!
Answer:
y=-2x-2.5
Step-by-step explanation:
-2y=x+5
--- --- ---
y= -2x - 2.5
assuming the -2y is negative if not its y=2x+2.5
