Question

PAGE NO.:
DATE:
1
The sum of first 45 natural number
is,
​

Answer 1

Answer:

1035 us your answer

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Answer 2

Answer:

We can use Arithmetic Progression here

Step-by-step explanation:

Sumn = n÷2.{2a + (n-1)d}

n= 45 ( number of natural numbers )

d = 1 ( difference is 1)

a = 1 ( first term)

22.5× { 2×1 + (45-1)1}

22.5.×{ 2 + 44 }

22.5 × 46

1035