find the common difference of an AP whose 1st term is 5 and 11th term is -5
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a=5
a11=-5
a11=a+10(d)
-5=5+10d
-5-5=10d
-10=10d
d=-10/10=-1
common difference=-1
a11=-5
a11=a+10(d)
-5=5+10d
-5-5=10d
-10=10d
d=-10/10=-1
common difference=-1
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0
Answer:
-1
Step-by-step explanation:
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