The 10th term of the G.P. 1, −a, a2, −a3, ........ is : 1. a9 2. −a10 3. −a11 4. −a9

Question

KnowledgeBoat · Accepted Answer

In the given G.P., a = 1 r = = -a n = 10 We know that, nth term of a G.P. is given by, ⇒ Tn = arn - 1 ⇒ T10 = 1.(-a)10 - 1 = (-a)9. Hence, option 4 is the correct option.

Mathematics

The 10th term of the G.P. 1, −a, a², −a³, …….. is :
a⁹
−a¹⁰
−a¹¹
−a⁹

G.P.

Related Questions

The 8th term of the G.P. 1, 3, 9, 27, ………. is :
729
2187
6561
none of these

The nth term of the G.P. x³, x⁵, x⁷, …….. is :
x^{(2n - 1)}
x^{(2n + 3)}
x^{(2n + 1)}
x^{3n + 2}

Which term of the G.P. 2, 8, 32, 128, …….. is 131072?
9th
10th
8th
12th

Mathematics

The 10th term of the G.P. 1, −a, a2, −a3, …….. is :a9−a10−a11−a9

G.P.

Related Questions

The 8th term of the G.P. 1, 3, 9, 27, ………. is :72921876561none of these

The nth term of the G.P. x3, x5, x7, …….. is :x(2n - 1)x(2n + 3)x(2n + 1)x3n + 2

Which term of the G.P. 2, 8, 32, 128, …….. is 131072?9th10th8th12th

The 10th term of the G.P. 1, −a, a², −a³, …….. is :
a⁹
−a¹⁰
−a¹¹
−a⁹

The 8th term of the G.P. 1, 3, 9, 27, ………. is :
729
2187
6561
none of these

The nth term of the G.P. x³, x⁵, x⁷, …….. is :
x^{(2n - 1)}
x^{(2n + 3)}
x^{(2n + 1)}
x^{3n + 2}

Which term of the G.P. 2, 8, 32, 128, …….. is 131072?
9th
10th
8th
12th