Tamil Nadu Board of Secondary EducationSSLC (English Medium) Class 10th
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Find the indicated terms of the sequences whose nth terms are given by an = – (n2 – 4); a4 and a11 - Mathematics

Sum

Find the indicated terms of the sequences whose nth terms are given by

an = – (n2 – 4); a4 and a11

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Solution

an = – (n2 – 4); a4 and a11 

a4 = – (42 – 4)

= – (16 – 4)

= – 12

a11 = – (112 – 4)

= – (121 – 4)

= – 117

a4 = – 12 and a11 = – 117

Concept: Sequence
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APPEARS IN

Samacheer Kalvi Mathematics Class 10 SSLC Tamil Nadu State Board
Chapter 2 Numbers and Sequences
Exercise 2.4 | Q 4. (ii) | Page 55
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