Webχ^2 = ∑ (O_i – E_i)^2/E_i This can be done as follows. For each observed number in the data, subtract the corresponding expected value, i.e. (O — E). Square the difference, (O — E)^2 Divide these squares by the expected value of each observation, i.e. [ (O – E)^2 / E]. Finally, take the sum of these values. WebEquation of a circle in General form: x 2 + y 2 + 2 g x + 2 f y + c = 0. Centre = (–g, –f ) r 2 = g 2 + f 2 – c. Radius = g 2 + f 2 − c. 4. Equation of a circle with points P (x1, y1) and Q …
Circles - Equation of Circle under Different Conditions …
WebApr 11, 2024 · If the parabola is sideways i.e., the directrix is parallel to x-axis, the standard equation of a parabola becomes, x2 = 4ay Apart from these two, the equation of a parabola can also be y2 = -4ax and x2 = -4ay if the parabola is in the negative quadrants. Thus, the four equations of a parabola are given as: y 2 = 4ax y 2 = – 4ax x 2 = 4ay Web=58√2 Binomial Expansion Important points to remember The total number of terms in the expansion of (x+y) n are (n+1) The sum of exponents of x and y is always n. nC 0, nC 1, nC 2, … .., nC n are called binomial coefficients and also represented by C 0, C 1, C 2, ….., C n red fox colt 45
Class 2 Maths - A Comprehensive Guide Of Maths Basics For Kids - BYJUS
WebStep 1: Identification of polynomial : We have the algebraic expression : x 2 + x y 3 2 - 1 3. Since a polynomial is an algebraic expression in which powers of variables in each term are whole number. In term-1 that is x 2 , power of variable is 2 which is a whole number. In term-2 that is x y 3 2 , power of variable x is 1 & power of variable ... WebApr 3, 2024 · The coordinates of point A are ( x1,y1), and of B are ( x2,y2). Then the formula to seek out the space/distance between two points PQ is given by: Distance formula : A B = ( x 2 − x 1) 2 + ( y 2 − y 1) 2 How to Find the Distance/Space Between the Two Points on a Coordinate Plane? Suppose there are two points in a plane P (2, 3) and Q (-2, 0). WebMar 21, 2024 · Trick for modular division ( (x1 * x2 …. xn) / b ) mod (m) Factorial: Program for factorial of a number Legendre’s formula (Given p and n, find the largest x such that p^x divides n!) Count trailing zeroes in factorial of a number Factorial of a large number Primorial of a number Find maximum power of a number that divides a factorial red fox colorado