Find the 26th term of the A.P: 10, 6, 2, –2, – 6, –10, ..... ?(a – InterviewSolution

1.

Find the 26th term of the A.P: 10, 6, 2, –2, – 6, –10, ..... ?(a) –86 (b) 96 (c) –90 (d) –106

Answer»

Answer : (c) - 90

T_n = a + (n – 1)d

⇒ T₂₆ = a + 25d

Here a = 10, d = – 4

∴ T₂₆ = 10 + 25 × (–4)

= 10 – 100

= – 90.

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