Answer:
103
Step-by-step explanation:
Answer = 0
n can have possible values from (-12) to 12
-12 <= n < 12
(-12) + (-11)+(-10)......+10+11+12=0
Answer:
srry guys i dont know this
Step-by-step explanation:
Answer:

Step-by-step explanation:
We know by definition that the cosine is an even function, therefore

We also know that the sin is an odd function, therefore

By definition:

Then:


Using these trigonometric properties we can simplify the expression
