Question

C. Solve what is asked:
1. Insert four arithmetic means between -1 and 14.​

Answer 1

This is very hard question

Answer 2

SOLUTION

TO DETERMINE

Four arithmetic mean between - 1 & 14

CALCULATION

We have to Insert four arithmetic means between -1 and 14.

Let x, y, u, v be the four arithmetic means between -1 and 14

So - 1, x, y, u, v, 14 are in Arithmetic Progression

First term = a = - 1

Let Common Difference =d

Then sixth term = 14

$\sf{}a + (6 - 1)d = 14$

$\implies \sf{} - 1 + 5d = 14$

$\implies \sf{} 5d = 15$

$\implies \sf{} d =3$

So

x = a + d = - 1 + 3 = 2

y = x + d = 2 + 3 = 5

u = y + d = 5+ 3 = 8

w = u + d = 8 + 3 = 11

FINAL ANSWER

The four arithmetic means between -1 and 14 are 2, 5, 8, 11

━━━━━━━━━━━━━━━━

LEARN MORE FROM BRAINLY

find the 100th term of an AP

whose nth term is 3n+1

https://brainly.in/question/22293445