Question

If 1+2+3+,,,,n=666 then the value of n is

Answer 1

Answer:

36.

Step-by-step explanation:

(n+1)

=666

n^2+n=666\times 2n

2

+n=666×2

n^2+n=1332n

2

+n=1332

n^2+n-1332=0n

2

n +n−1332=0

n^2+37n-36n-1332=

2

+37n−36n−1332=0

n(n+37)-36(n+37)=0n(n+37)−36(n+37)=0

(n+37)(n-36)=0(n+37)(n−36)=0

n=-37,36n=−37,36