Find the 100th term of an AP whose 1st term 20 and 6th term is 45
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1
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515
Step-by-step explanation:
a = 20
a + 5d = 45
or, 20+ 5d = 45
or,. 5d = 25
or, d = 5
the 100th term is-----. a + 99d = 20 + 99×5
= 515
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