Question

1/2.3.4.+1/3.4.5+1/4.5.6+..........to n terms​

Answer 1

Answer:

5n - 4/2

Step-by-step explanation:

a=1/2

d=3 - 1/2 = 5/2

an = a +(n - 1)d

an = 1/2 + (n - 1)×5/2

an = 1/2 + 5/2n - 5/2

an = 5/2n - 4/2

Answer 2

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