Question

The sum of all the integers between-5 and -1 is 6

Answer 1

Answer:

False

Step-by-step explanation:

Sum is - 9

Hope it helps.....

Answer 2

Answer:

No

Step-by-step explanation:

Concept= Summation of series/sequence

Given= integers from -5 to -1

To find= Check sum is 6 or not

Explanation=

The sequence has integers between -5 to -1.

The sequence is -4,-3,-2

Proceeding the Sum of sequence way=

a=-4, l=-2 ,d=1

l= a+(n-1)d

-2= -4+(n+1)1, n=3

Sum= (a+l)n/2

          (-4-2)3/2= -9

Sum of integers between -5 and -1 is -9.

Checking in manual way:

-4 + (-3) + (-2) = -4 -3 -2 = -9

Its the same.

Hence, The sum of integers between -5 and -1 is -9 and NOT 6.

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