The general solution ofthe trigonometrical equationsinx+cosx=1forn=0,±1,±1is given by (a)x=2nπ(b)x=2nπ+π2(c)x=nπ+(−1)nπ4−π4(d) non of these View Solution Doubtnut is No.1 Study App and Learning App with Instant Video Solutions for NCERT Class 6, Class 7, Cl...
solution of a differential equation with constant coefficients, one of the methods used is that of indeterminate coefficients. This method is used when g (x) has a special form, defined by polynomials, exponentials, sines, and cosines, or g(x) is a finite li...
the solution of the associated homogeneous equation to determine the general solution (1-x)y"+xy'-y=2(x-1)^2e^{-1},y_1(x)=e^x Given linear non homogeneous equation {y}'' - 6{y} ' + 10 y = \sin t (a) Find a particular solution (b) Find the general s...
设A(n,k)为不定方程∑ki=1ixi=n的非负整数解的个数,本文作者给出了A(n,k)递推公式的证明及由此公式得到的A(n,k)取值表,用该递推公式求出了A(n,4)的精确公式。 2. A self-similar analytical solution of the Boussinesq equation of groundwater flow in a semi-infinite porous medium when the...
圆本身是一维的,可以通过其弧长x来表征。 坐标y通过关系y1 = r cosx / r和y2 = rsinx / r与坐标x相关。 这给出?y1/?x= -sin x / r和?y2/?x= cos x / r在这种情况下,度量是标量,由g = cos2 x / r + sin2 x / r = 1给出。 间隔是ds2 = g dx2 = dx2。 间隔等于预期的弧长 ...
圆本身是一维的,可以通过其弧长x来表征。 坐标y通过关系y1 = r cosx / r和y2 = rsinx / r与坐标x相关。 这给出?y1/?x= -sin x / r和?y2/?x= cos x / r在这种情况下,度量是标量,由g = cos2 x / r + sin2 x / r = 1给出。 间隔是ds2 = g dx2 = dx2。 间隔等于预期的弧长 ...