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Question
Show that the following sequence is an A.P. Also find the common difference and write 3 more terms in case.
9, 7, 5, 3, ...
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Solution
\[\text { We have }: \]
\[ 7 - 9 = - 2\]
\[5 - 7 = - 2\]
\[3 - 5 = - 2\]
\[\text { Thus, the sequence is an A . P . with the common difference being } ( - 2) . \]
\[\text { The next three terms are as follows }: \]
\[3 - 2 = 1\]
\[1 - 2 = - 1\]
\[ - 1 - 2 = - 3\]
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