If a+b=0,then the equation ax+b=0 for x has( )(英汉小词典:infiniteroots:无穷多个根)A. only one
If a+b=0.then the equation ax+b=0 for x has( )(英汉小词典:infiniteroots:无穷多个根) A.only one rootB.only one root or no rootC.only one root or infinite rootsD.no root or infinite roots
In our research we observed that when early secondary and late secondary school students have to solve equations of the form (ax + b)(cx + d) = 0, they do not always apply the property, even when it is the only available tool and have received specific instruction on its application ...
HI, i want to convert xps file to pdf file and add a background in c# i did it by using Microsoft print to pdf but the problem that i cant add a background i try to add background to xps then convert it to pdf using microsoft print to pdf hide a label after a few second as ...
If a+b=0,then the equation ax+b=0 for x has( )(英汉小词典:infiniteroots:无穷多个根)A. only one rootB. only one root or no rootC. only one root or infinite rootsD. no root or infinite roots
@dlax It makes sense, but seems less intuitive than if/then/else. And the main point of if/then/else is to offer something intuitive. Everything it does can be done already. And implementing else-if-like (but unordered) logic just looks like this: { "oneOf": [ { "if": { "type...
If a2+b2>0,then the equation ax+b=0 for x has( )A、only one rootB、no rootC、infinite roots(无穷多个根)D、only one root or no root 答案 解答:解:由ax+b=0可得x=-ba,∵a2+b2>0,∴a、b不会同时为0,当a=0时,方程无解;当a≠0时,方程有惟一的解x=-ba,故选:D.分析:首先根据...
If f(x)=⎧⎪⎨⎪⎩ax2−ba≤x<12x=1x+11≤x≤2 then the value of the pair (a,b) for which f(x) cannot be continuous at x=1, is A (2,0) B (1,-1) C (4,2) D (1,1) Video SolutionText SolutionVerified by Experts The correct Answer is:DFor f(x) to be co...
ax^2-bx=ay^2 byax^2-ay^2=bx byFactor each side of the equation:ax^2-ay^2= bx bya(x^2-y^2)=b(x y)Divide each side of the equation by b and x^2-y^2:=(x y)(x^2-y^2)=(x y)((x y)(x-y))=1(x-y)反馈 收藏 ...
由ax+b=0可得x=- b a ，∵a 2 +b 2 ＞0，∴a、b不会同时为0，当a=0时，方程无解；当a≠0时，方程有惟一的解x=- b a ，故选：D．