Category: Algebra

Question Number 12261 by frank ntulah last updated on 17/Apr/17 $$findthevalueofabandc$$$$a+b+c=4$$$$a^2+b^2+c^2=66$$$$a^3+b^3+c^3=280$$…

Question Number 12255 by b.e.h.i.8.3.4.1.7@gmail.com last updated on 16/Apr/17 Answered by mrW1 last updated on 16/Apr/17 $$(x+1)(x+2)(x+3)(x+4)+1$$$$=(x+\frac{5}{2}-\frac{3}{2})(x+\frac{5}{2}-\frac{1}{2})(x+\frac{5}{2}+\frac{1}{2})(x+\frac{5}{2}+\frac{3}{2})+1$$$$=\left[\left({x}+\frac{\mathrm{5}}{\mathrm{2}}\right)^{\mathrm{2}} −\left(\frac{\mathrm{3}}{\mathrm{2}}\right)^{\mathrm{2}} \right]\left[\left({x}+\frac{\mathrm{5}}{\mathrm{2}}\right)^{\mathrm{2}} −\left(\frac{\mathrm{1}}{\mathrm{2}}\right)^{\mathrm{2}} \right]+\mathrm{1}…

Question Number 143322 by enter last updated on 13/Jun/21 Answered by mr W last updated on 13/Jun/21 Commented by mr W last updated on 13/Jun/21…

Question Number 143293 by Huy last updated on 12/Jun/21 $$f\left(x\right)=ln(1+ln\left(x\right)).$$$$f\left(x\right)=ln\left(f^{\prime }\left(x\right)\right).Findx$$ Answered by Olaf_Thorendsen last updated on 12/Jun/21 $$f\left(x\right)=\ln (1+\ln x)$$$${f}'\left({x}\right)\:=\:\frac{\frac{\mathrm{1}}{{x}}}{\mathrm{1}+\mathrm{ln}{x}} \…

Question Number 143284 by mathdanisur last updated on 12/Jun/21 Answered by mitica last updated on 12/Jun/21 Commented by loveineq last updated on 12/Jun/21 $$\mathrm{Very}\:\mathrm{nice}\:\mathrm{solution}. \…