Answer:
sum of the first 27 terms = -1431
Step-by-step explanation:
<h3>arithmetic series sum of the first n terms formula:</h3>

n = 27 terms
first term, a = 25
common difference, d = 19 - 25 = -6
substitute the values into the formula





Answer: Explanation: 102=2⋅51. i102=(i2)51=(−1)51=−1.
Step-by-step explanation:
Answer:
Hi thats the answer.
Step-by-step explanation:
1/6 thats it u cant simplify