Answer is choice C) cosine is even; sine is odd
The properties that come with even and odd functions are...
f(-x) = f(x) indicates we have an even function. So cos(-x) = cos(x)
f(-x) = -f(x) indicates we have an odd function. So sin(-x) = -sin(x)
note: the end result of the proof will lead to cos(A)cos(B)+sin(A)sin(B)
Answer:
3 times 23 is your prime factorization. hope this helps!
Step-by-step explanation:
Answer: https://mathsolver.microsoft.com/en/solve-problem/2x+4y-8=0
Step-by-step explanation: you should find your answer there
Answer:
a=13m
Step-by-step explanation:
that's it in the picture
Answer:
Correct choice is B
Step-by-step explanation:
In step 4 were proved that 
By definition, similar triangles have proportional lengths of corresponding sides. To the side AB corresponds side ED, to the side AC corresponds side DC and to the side BC corresponds side EC. Thus,
