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CMR nếu a/b=c/d thì\(\frac{7a^2+3ab}{11a^2-8b^2}=\frac{7c^2+3cd}{11c^2-8d^2}\)
cho a/b = c/d . cmr 7a mũ 2 + 3cd / 11a mũ 2 - 8b mũ 2 = 7c mũ 2 + 3cd / 11c mũ 2 - 8d mũ 2
cho a/b = c/d . cmr 7a mũ 2 + 3cd / 11a mũ 2 - 8b mũ 2 = 7c mũ 2 + 3cd / 11c mũ 2 - 8d mũ 2
CMR nếu a/c =b/d thì:
\(\frac{7a^2+3ab}{11a^2+8b^2}=\frac{7c^2+3cd}{11c^2+8d^2}\)
CMR:nếu a/b=c/d thì a)5a+3b/5a-3b ; b)7a^2+3ab/11a^2-8b^2=7c^2+3cd/11c^2-8d^2
C/m : nếu a/b = c/d thì
\(\frac{7a^2+3ab}{11a^2-8b^2}=\frac{7c^2+3cd}{11c^2-8d^2}\)
Cho \(\frac{a}{b}=\frac{c}{d}.CMR:\frac{7a^2+3ab}{11a^2-8b^2}=\frac{7c^2+3cd}{11c^2-8d^2}\)
Hẹp me
Cho \(\dfrac{a}{b}=\dfrac{c}{d}\) Chứng minh:
\(\dfrac{7a^2+3ab}{11a^2-8b^2}=\dfrac{7c^2+3cd}{11c^2-8d^2}\)
8 tháng 12 2021 lúc 15:20
cho \(\dfrac{a}{b}=\dfrac{c}{d}\) Chứng minh rằng
\(\dfrac{7a^2+3ab}{11a^2+8b^2}=\dfrac{7c^2+3cd}{11c^2-8d^2}\)