Question

Express 64 as the sum of 2 consecutive triangular numbers
pls its urgent

Answer 1

◆ Answer -

625 = 300 + 325

◆ Explanation -

Let x and y be consecutive triangular numbers such that -

x = n(n+1)/2

y = (n+1)(n+2)/2

Here,

x + y = 625

n(n+1)/2 + (n+1)(n+2)/2 = 625

(n+n+2) × (n+1)/2 = 625

(n+1)(n+1) = 25×25

n+1 = 25

n = 24

Now solve for x & y,

x = n(n+1)/2 = 24×25/2 = 300

y = (n+1)(n+2)/2 = 25×26/2 = 325.

Hence, square no 625 can be expressed as sum of two triangular numbers as 625 = 300 + 325 .

This is the format hope it helps you plz plz mark as brainiliest.

Answer 2

Answer:

IDK

Step-by-step explanation:

ASk easy ones and do it by ur self