The formula for the nth triangular number is n(n+1)/2. If the 8th triangular number is 36, then we can set up the equation 8(8+1)/2 = 36. Solving for n, we get n = 7. Therefore, the 7th triangular number is 7(7+1)/2 = 28.
Chat with our AI personalities
36 to the 8th power is 2,821,109,907,456
Square: 1, 4, 9, 16, 25, 36, 49. Triangular: 1, 3, 6, 10, 15, 21, 28, 36, 45.
-99
The square roots of 36 are ±6, therefore, sqrt(36) is a rational number.
No because the square root of 36 is 6 which is a rational number