Question

insert two arithmetic means between -2 and 7..

explain also..​

Answer 1

Answer:

Step-by-step explanation:

consider  the series as -2 , x , y , 7

where

x = -2 + d

y = -2 + 2d

where d is the common difference

first term is  a = -2

last term is l = 7

we know that l = (-2)+ (4-1)d          ( l = a + (n-1)d)

                        7  = -2 + 3d

                        3d = 9

                         d = 3

therefore x = 1

                y = 4

the two arithmetic means between -2 and 7 are 1 and 4.......

hope it helps............

Answer 2

Answer:

12383864838

78282(2) 92

89wijdhxjicjvjf

2(3992929₹