Question

find the common difference of an A.P whose first term is 5 and 11 th term is -5.

Answer 1

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Answer 2

Answer: The common difference is -1

Step-by-step explanation:

The first term (a) = 5

The 11th term : a+(n-1)d = -5

= a+(11-1)d = -5

= 5 + 10d = -5

10d = -5-5

10d = -10

d = -10/10

d = -1

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