Find the derivative of: 3x2+ 4x. According to the sum rule: a= 3,b= 4 f(x) =x2,g(x) =x f '(x) = 2x,g'(x) = 1 (3x2+ 4x)' = 3⋅2x+4⋅1 = 6x+ 4 Derivative product rule (f(x) ∙g(x) ) ' =f '(x) g(x) +f(x)g'(x) ...
解:方程两边对 x 求导,得 5y^{4}\frac{dy}{dx}+2\frac{dy}{dx}-1-21x^{6}=0 ,解得 \frac{dy}{dx}=\frac{1+21x^{6}}{5y^{4}+2} 方法③:根据隐函数求导公式 \frac{dy}{dx}=-\frac{F'x}{F'y} ,前提需要满足等式 F\left( x,y \right)=0; ...
is an alkyl group comprising from one to five carbons atoms, R 2 is an alkyl group comprising from one to five carbon atoms, and R 3 is hydrogen, or an alkyl group comprising from one to five carbon atoms, at most one of R 1 , R 2 and R 3 being substituted alkyl are described....
When EXWM-X is enabled, user can dragtitle showed in button-lineto move a floating-window. and click [9][8][7][6][5] in button-line to set a floating-window's size,without press WIN key. Note: button-line is mode-line or header-line of emacs. ...
In addition, CQ could inhibit SARS-CoV entry through changing the glycosylation of ACE2 receptor and spike protein6. Time-of-addition experiment confirmed that HCQ effectively inhibited the entry step, as well as the post-entry stages of SARS-CoV-2, which was also found upon CQ treatment (...
7.2.2 Interest Rate Swap Interest rate swaps (IRS’s) are very common financial instruments – it is not unusual for 80% of the trades in a portfolio to be IRS deals. Here, we will provide a description of some of the characteristics of IRS’s, more detail can be found in Hull (200...
(N = 6).eViral RNA and infectious titer levels in lung tissues of Vehicle-controlled, VV116- and Ribavirin- treated mice on day 4 post infection (p.i.). Error bars indicate SEM. mpk: mg/kg. The significance of the difference between mean values was determined by Student’sttest....
(2+1)-dimensional DNLS equation, and the general explicit formula forN-soliton solution is derived in terms of Vandermonde-like determinant expression. On the zero background, two different families of soliton solutions (multi-line soliton and multi-parabola soliton solutions) are constructed by ...
A novel derivative of 1-β-D-arabinofuranose namely the 5-fluorocytosine derivative has been prepared and found to have excellent activity against mouse leukemia. Fox, Jack J,Burchenal, Joseph H - US 被引量: 6发表: 1978年 2′-O-nitro-l-β-D-arabinofuranosylcytosine. A new derivative of...
摘要: The synthesis and characterization of a sterol with the same structural features as cholesterol and possessing a hydrophobic fluorescent side-chain suitable for membrane fluidity studies is reported.关键词: steroids DOI: 10.1002/chin.198544293 被引量: 1 ...