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Author: Tinku Tara

Question-192839

Question Number 192839 by Mingma last updated on 29/May/23 Answered by witcher3 last updated on 02/Jun/23 $$\mathrm{we}\:\mathrm{see}\:\mathrm{that}\:\mathrm{2},\mathrm{7}\:\mathrm{can}'\mathrm{t}\:\mathrm{bee}\:\mathrm{factor}\:\mathrm{of}\:\mathrm{n} \\ $$$$\mathrm{and}\:\mathrm{11}\mid\mathrm{n}\: \\ $$$$\mathrm{if}\:\mathrm{n}≢\mathrm{0}\left[\mathrm{11}\right] \\ $$$$\frac{\mathrm{n}^{\mathrm{2}} +\mathrm{4}^{\mathrm{n}} +\mathrm{7}^{\mathrm{n}}…

Question-192828

Question Number 192828 by Ari last updated on 28/May/23 Commented by Ari last updated on 28/May/23 Can we find the side x in the problem given in the figure? Answered by MM42 last updated on 28/May/23 $${cosE}=\frac{\mathrm{25}+\mathrm{64}−\mathrm{49}}{\mathrm{2}×\mathrm{5}×\mathrm{8}}=\frac{\mathrm{40}}{\mathrm{80}}=\frac{\mathrm{1}}{\mathrm{2}}…