) Find the 105th term of the AP whose first term is 2.7 and common difference is 0.
If the common difference of an AP is -3 and the 20th term is -11,
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I hope this answer may help you
Step-by-step explanation:
Here a=first term,d=common difference
(ii)n=105,a=2.7,d=0
a+(n-1)d=an
2.7+(105-1)0=an
2.7+0=an
an=2.7
105th term of the A.P is 2.7
(i)20th term=-11
a+19d=-11 (d=-3 given )
a+19(-3)=-11
a-57=-11
a=-11+57
a=46
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