The formula for finding the nth triangular number is: tn = n(n+1)/2.
If 297 is the nth triangular number then 297 = n(n+1)/2
Now we have a equation, if the solution of the equation is a natural number then 297 is a triangular number otherwise it is not.
297 = n(n+1)/2
297 x 2 = n2 + n
n2 + n = 594
n2 + n - 594 = 0, which is a quadratic equation.
And the solutions of the equation are:
n = (-1 - (2377)1/2)/2
n = ((2377)1/2 - 1)/2
As it can be seen the value of n is not a natural number so 297 can't be triangular number.
Please visit the related links for more info about triangular number and quadratic equation and their solution.
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Is 63 a triangular number I think it is a triangular number.
013
297 is 33% of 900
No, 18 is not a triangular number.
No, 35 is not a triangular number.
Is 63 a triangular number I think it is a triangular number.
013
297 is 33% of 900
no it is not a triangular number
Decimal triangular number it is
They don't necesarily,3 is a triangular number and 10 is a triangular number. Their sum is 13 which is not a square number.They don't necesarily,3 is a triangular number and 10 is a triangular number. Their sum is 13 which is not a square number.They don't necesarily,3 is a triangular number and 10 is a triangular number. Their sum is 13 which is not a square number.They don't necesarily,3 is a triangular number and 10 is a triangular number. Their sum is 13 which is not a square number.
36 is a triangular number, Square number and also a Consecutive number.
yes. -297 is a rational number. It is a negative integer.
No, 33 is not a triangular number.
No, 172 is not a triangular number.
No, 324 is not a triangular number!
No, 18 is not a triangular number.