in a good -3,-7,-11 without finding a30 a20 find the value of a30-a20
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Answer:
a30 - a20 = -40
Step-by-step explanation:
a = -3
d = a2 - a1 = a3 - a2
-7 - (-3) = -11 - (-7)
-7 + 3 = -11 + 7
-4 = -4
d = -4
a30 = a + 29d a20 = a + 19d
a30 - a20
= a + 29d - (a + 19d)
= a + 29d - a - 19d
= 10d
10 × -4 = -40 (since d = -4)
hope you get your answer
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