求f(x) f(x 1)=8x 7∠1...

请问一下f(x) f(x 1)=8x 7∠1=70°,∠2=110°,∠3=60°x2^2-ax2)/(x1^2-ax1)>0 3AB BC CA)/2=0
血刺木木0797
m2-2m 1-4m
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/etc/nginx/nginx.conf.请问一下f(x) f(x 1)=8x 7∠1=70°,∠2=110°,∠3=60°x2^2-ax2)/(x1^2-ax1)>0 3AB BC CA)/2=0
(2x-14) / (x^2-1) <= -1所以4〔x-2〕⒉-1=8所以y=a*x^2 b*x c三向量AB、BC、CA构成ABC,AB BC CA=0
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扫描下载二维码求f(x) f(x 1)=8x 7∠1=70°,∠2=110°,∠3=60°_百度知道已知f(x)是一次函数,且f(f(f(x)))=8x+7.求f(x)的解析式
由题意可设设f(x)=ax+b 则f{f[f(x)]}=f{f[ax+b]}
=f[a×(ax+b)+b] (因为f(x)=ax+b 则f(ax+b)=a×(ax+b)+b)
=a[a×(ax+b)+b]+b
=a^2(ax+b)+ab+b
=a^3x+a^2b+ab+b
则a^3=8 ; a^2b+ab+b=7 由第一个等式可得 a=2
代入后面的等式得 4b+2b+b=7
则 b=1所以 f(x)=2x+1你好,很高兴为你解答,希望对你有所帮助,若满意请采纳.
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