Question

Find The Sum Of 8th Triangular Number And 6th Square Number

Answer 1

Answer:

8th triangular number = 8×3 =24 and 6th square number = 6×4= 24 answer

Answer 2

Answer:

The sum of 8th Triangular Number and 6th Square Number is 72.

Step-by-step explanation:

The formula for triangular number is given by:

Tₙ = ∑ k  ( from 1 to n)

The 8th triangular number will be:

T₈ = ∑k ( 1 to 8)

T₈ = 1 + 2 + 3 + 4 + 5 + 6  +7 + 8

T₈ = 36

The formula for square number is given by:

Tₙ = n²

6th square number will be:

T₆ = 6²

T₆ = 36

Sum of 8th triangular number and 6th square number = 36 + 36 = 72

Therefore, the sum of 8th Triangular Number and 6th Square Number is 72.

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