Answer:
7/15
I hope this helps and I apologize if I'm wrong.
Can you tell me if I was wrong or right?
It’s 8 I think the answer is 8
Well... you don't necessarily need to get the cosine value, in order to get the double angle
In arithmetic sequence, let the first tern of the arithmetic sequence be, a, and the common difference, d, then the nth term, Tn, of the arithmetic sequence is given by:
For a linear function with y-intercept, c, and slope, m, the linear function is given by:
Comparing the equation of the arithmetic sequence and that of the linear function, we can see that y is compared to Tn, a is compared to c, m is compared to d, and x is compared to n - 1.
Therefore, <span>the common difference in an arithmetic sequence is like the slope of a linear function as both are multiple of a variable.</span>