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Question
Find 11th term of the A.P. -17, -12, -7, ...............
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Solution
First term, a=−17
Common difference, d = a2 −a1 = −12−(−17) = 5
We know that, an=a+(n−1)d
a11 = −17+(11−1)(5)
a11 = −17+(10)(5)
a11 = −17+50=33
Common difference, d = a2 −a1 = −12−(−17) = 5
We know that, an=a+(n−1)d
a11 = −17+(11−1)(5)
a11 = −17+(10)(5)
a11 = −17+50=33
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