To solve for the terms of the sequence and the common difference, we will:
Using the formula for the sequence an=6−5⋅(n−1) a_n = 6 - 5 \cdot (n-1) an=6−5⋅(n−1), we calculate the first five terms:
For n=1 n = 1 n=1: a1=6−5⋅(1−1)=6−0=6 a_1 = 6 - 5 \cdot (1-1) = 6 - 0 = 6 a1=6−5⋅(1−1)=6−0=6
For n=2 n = 2 n=2: a2=6−5⋅(2−1)=6−5=1 a_2 = 6 - 5 \cdot (2-1) = 6 - 5 = 1 a2=6−5⋅(2−1)=6−5=1
For n=3 n = 3 n=3: a3=6−5⋅(3−1)=6−10=−4 a_3 = 6 - 5 \cdot (3-1) = 6 - 10 = -4 a3=6−5⋅(3−1)=6−10=−4
For n=4 n = 4 n=4: a4=6−5⋅(4−1)=6−15=−9 a_4 = 6 - 5 \cdot (4-1) = 6 - 15 = -9 a4=6−5⋅(4−1)=6−15=−9
For n=5 n = 5 n=5: a5=6−5⋅(5−1)=6−20=−14 a_5 = 6 - 5 \cdot (5-1) = 6 - 20 = -14 a5=6−5⋅(5−1)=6−20=−14
Thus, the first five terms are 6,1,−4,−9,−14 6, 1, -4, -9, -14 6,1,−4,−9,−14.
The common difference d d d is calculated as follows: d=a2−a1=1−6=−5 d = a_2 - a_1 = 1 - 6 = -5 d=a2−a1=1−6=−5
The first term is 6 6 6, the second term is 1 1 1, the third term is −4 -4 −4, the fourth term is −9 -9 −9, the fifth term is −14 -14 −14, and the common difference is −5 -5 −5.
a1=6,a2=1,a3=−4,a4=−9,a5=−14,d=−5 \boxed{a_1 = 6, a_2 = 1, a_3 = -4, a_4 = -9, a_5 = -14, d = -5} a1=6,a2=1,a3=−4,a4=−9,a5=−14,d=−5
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