Math, asked by gurjararnav2, 4 months ago

if the nth term of A.P.5,2,1 is, then the value of n is

Answers

Answered by hsahu6821

3

Answer:

ap = 5,2,1

Step-by-step explanation:

a+n

D= 5-2 = 3

an =

a+ (n-1) d

= 5 + ( n-1) 3

=5+ 3n-3

-3n =2

n= 2+3

n = 5

Previous Question

Next Question

Similar questions

Math, 2 months ago

what is natursl numbers?

Chemistry, 2 months ago

define energy of activation.

Math, 2 months ago

Ch-13 Perimeter and Area 0.1 Find the height if the area of the parallelogram is 36 square cm and the base is 9 cm...

Chemistry, 4 months ago

Calculate: (a) Total number of spherical nodes in 3p orbital. (b) Total number of nodal planes in 3p orbital. (c) Nodal planes in 3d orbital.

English, 4 months ago

draw the pictures of cutting cutting down trees using pesticides and Chemicals in the field children not going to school people wasting their time by playing cards and write a paragraph picutreof using should or should not...

English, 9 months ago

meaning of hero please answer me fast ...

Math, 9 months ago

Find the positive root of squareroot of 3x square +6=9...

Math, 9 months ago

The horizontal distance between two poles is 15 m. The angle of depression of the top of first pole as seen from the top of second pole is 30°. If the height of the second pole is 24 m, find the height of the first pole.(Use V3 =1.732...