You are referring to:
![\sum\limits_{i=1}^{n}{i} = \frac{n(n+1)}{2}](https://tex.z-dn.net/?f=%5Csum%5Climits_%7Bi%3D1%7D%5E%7Bn%7D%7Bi%7D%20%3D%20%5Cfrac%7Bn%28n%2B1%29%7D%7B2%7D)
You can solve your problem by calculating
![\sum\limits_{i=1}^{525}{i} = \frac{525\cdot526}{2} = 138075](https://tex.z-dn.net/?f=%5Csum%5Climits_%7Bi%3D1%7D%5E%7B525%7D%7Bi%7D%20%3D%20%5Cfrac%7B525%5Ccdot526%7D%7B2%7D%20%3D%20138075%20)
and then subtracting the first bit:
![\sum\limits_{i=1}^{19}{i} = 190](https://tex.z-dn.net/?f=%5Csum%5Climits_%7Bi%3D1%7D%5E%7B19%7D%7Bi%7D%20%3D%20190)
So 138075 - 190 = 137885
65ft because you would do 14+14=28 and 20+20=40. 40+28= 68. 68-3=65
The number that is divided is called the dividend and the number which the dividend is being divided by is the divisor. The answer to a division problem is the quotient. and the number which is left called remainder
for example :- 248 divide by 6
in this 248 is dividend , 6 is divisor after division we got 41 quotient and 2 remainder
Answer:
is rational number
Step-by-step explanation:
Rational number is of the form p/q, where q ≠ 0. It may be a terminating number or non terminating repeating number.
√2 is irrational number as it is non terminating non repeating number
π is irrational number as it is non terminating non repeating number
√10 is irrational number as it is non terminating non repeating number.
![\sqrt{16}=\sqrt{4*4}=4](https://tex.z-dn.net/?f=%5Csqrt%7B16%7D%3D%5Csqrt%7B4%2A4%7D%3D4)
is a rational number