19 мар. 2020 г. · The derivatives of g and h are g′(u)=2uT,h′(x)=A. So by the chain rule f′(x)=g′(h(x))h′(x)=2(Ax−b)TA. Thus ∇f(x)=f′(x)T=2AT(Ax−b). Now setting ∇ ... expanding binomials of form $(ax+b)^2 Completing the square in the form $(Ax + B)^2 + C Другие результаты с сайта math.stackexchange.com |
Apply Perfect Square Formula: (a+b)2=a2+2ab+b2(ax+b)2=(ax)2+2axb+b2=(ax)2+2axb+b2. Simplify (ax)2+2axb+b2:a2x2+2abx+b2. =a2x2+2abx+b2. |
(ax+by)2Using(a+b)2=a2+2ab+b2=(ax)2+2(ax)(by)+(by)2=a2+x2+2abxy+b2y2. Was this answer helpful? upvote 21. Similar Questions. star-struck. Q1. Expand :-(ax+ ... |
Two polynomials are considered equal if they have matching coefficients. So 1x^2 + 0x + 1 = a^2x^2 + 2abx + b^2 if and only if \begin{align} a^2 &= 1 \\ 2ab &= ... |
12 июн. 2020 г. · It is known that, (a + b) 2 = a 2 + 2ab + b 2 and (a − b) 2 = a 2 − 2ab + b 2. (ax + by) 2 = (ax) 2 + 2 × ( |
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