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Let < an > Be a Sequence. Write the First Five Term in the Following: A1 = A2 = 2, an = an − 1 − 1, N > 2 - Mathematics

Let < an > be a sequence. Write the first five term in the following:

a1 = a2 = 2, an = a− 1 − 1, n > 2

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Solution

a1 = a2 = 2, an = a− 1 − 1, n > 2

\[a_3 = a_2 - 1 = 2 - 1 = 1\]

\[ a_4 = a_3 - 1 = 1 - 1 = 0\]

\[ a_5 = a_4 - 1 = 0 - 1 = - 1\]

Hence, the five terms are 2, 2, 1, 0 and \[-\]1 .

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APPEARS IN

RD Sharma Class 11 Mathematics Textbook
Chapter 19 Arithmetic Progression
Exercise 19.1 | Q 4.3 | Page 4
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