for the AP : -3,-7,-11.... FIND the value A30 - A20
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Answered by
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D = -7 + 3
= -4
A20 = a + 19 d
= -3 + 19*(-4)
= -3 - 67
= -70
A30 = a + 29 d
= -3 + 29*(-4)
= -3 - 116
= -119
A30-A20 = -119 +70
= -40 answer..
= -4
A20 = a + 19 d
= -3 + 19*(-4)
= -3 - 67
= -70
A30 = a + 29 d
= -3 + 29*(-4)
= -3 - 116
= -119
A30-A20 = -119 +70
= -40 answer..
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0
Answer:
-40 is answer
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