I am sorry I dont know how to make a diagram but the answer is 100 degress
Firstly, it is an arithmetic sequence.
d=-7 a1=5
a50 = 5-7*(50-1)
a50=-338
Answer:
cos(x) = ???
so the maximum cosine can be is 1 and that happens when x = 0
I'm pretty sure that's what you meant...
The answer is 23/42. CD is 42
