Answer:
C
Step-by-step explanation:
cot =cos/sin =a/b
cos=a/b*sin
(sin-cos)/(sin+cos) =(sin-sin*a/b)(sin+sin*a/b)
=(1-a/b)/(a+a/b)
=(b-a)/(a+b)
You need to add a picture in order for others to understand what you are referring to.
Answer:
B
Step-by-step explanation:
None of the numbers repeat unlike the other decimals
