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Question Number 168347 by cortano1 last updated on 08/Apr/22

Commented by mr W last updated on 09/Apr/22

$$seeQ128303$$$$s=\sqrt{3}(r_1+r_2)+\sqrt{3{(r_1+r_2)}^2-8r_1{r}_2}$$$$=\sqrt{3}\times 5+\sqrt{3\times 5^2-8\times 6}=8\sqrt{3}$$$$A=\frac{\sqrt{3}{s}^2}{4}=48\sqrt{3}$$

Commented by Tawa11 last updated on 08/Apr/22

$$\mathrm{Great}\mathrm{sir}$$

Commented by mathman1234 last updated on 09/Apr/22

$$\mathrm{plz}\mathrm{help}\mathrm{me}\mathrm{and}\mathrm{proove}\mathrm{if}0<\mathrm{a}<\mathrm{b}\mathrm{and}\mathrm{x}>0\mathrm{that}$$$$\frac{2}{\pi }(1-\frac{\mathrm{a}}{\mathrm{b}})⩽\sup \mid \frac{\sin \left(\mathrm{ax}\right)}{\mathrm{ax}}-\frac{\sin \left(\mathrm{bx}\right)}{\mathrm{bx}}\mid ⩽4(1-\frac{\mathrm{a}}{\mathrm{b}})$$

Commented by mr W last updated on 09/Apr/22

$$please{don}^{\prime }tputyournewquestionin$$$$existingthreadsofother{people}^{\prime }s$$$$questions!pleaseopenanewpost$$$$foryourownquestion!$$

Answered by infinityaction last updated on 11/Apr/22

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