## Basic Guidelines For Pte Exam Speaking 1

Follows from this expression that value" (x) at x = 0 is defined by value in Therefore for performance of a condition (1 it is necessary to find such values of coefficients of an at which v2 addresses in zero. For this purpose we will substitute expressions (1, (1 in the equation (and, equating zero coefficients at identical degrees x, we will express vn through an. Calculation shows that vn is expressed through coefficients a1, a2 and for performance of a condition v2 = 0 of these coefficients have to be calculated on the following formulas: