Insert 3 arithmetic means between - 5 and 3..?
Find a1 if a8=54 and a9 =60..?
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how to do it
Step-by-step explanation:
how to do it
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Answered by
1
Answer:
Step-by-step explanation:
a8=54
a+7d=54
a+8d=60
d=6
a=12
3=a+d(n-1)
3=12+d(5-1)
-9=d4
d=-9/4
now you find the arthimetic means by a+d,a+2d,a+3d
d=-9/4
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