Question

solve the equation :- (-4)+(-1)+2.....+x = 473 in AP​

Answer 1

Answer:

a = -4

d = 3

sn = n/2(2a +( n - 1)*3)

473 = n/2 (2*(-4)+ (n - 1) -3)

473*2 = n(-8 + 3n-3)

946 = -11n+3n^2

3n^2 - 11n -946

solve kr lo ans aa jayega

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