Question Number 8924 by tawakalitu last updated on 05/Nov/16 Commented by tawakalitu last updated on 05/Nov/16 $$\mathrm{From}\:\mathrm{the}\:\mathrm{diagram}\:\mathrm{above}\:,\:\mathrm{find}\:\mathrm{the}\:\mathrm{fraction} \\ $$$$\mathrm{of}\:\mathrm{the}\:\mathrm{shaded}\:\mathrm{portion} \\ $$ Commented by Rasheed Soomro…
Question Number 8888 by 7C;00 last updated on 04/Nov/16 Commented by prakash jain last updated on 04/Nov/16 $$\mathrm{for}\:\mathrm{positive}\:\mathrm{numbers}: \\ $$$$\mathrm{Arithmetic}\:\mathrm{mean}\:\geqslant\:\mathrm{Harmonic}\:\mathrm{mean} \\ $$$$\mathrm{AM}=\frac{{a}_{\mathrm{1}} +{a}_{\mathrm{2}} +…+{a}_{{n}} }{{n}}=\frac{{n}}{{n}}=\mathrm{1}…
Question Number 8884 by tawakalitu last updated on 03/Nov/16 Answered by sandy_suhendra last updated on 04/Nov/16 Commented by sandy_suhendra last updated on 04/Nov/16 $$\mathrm{let}\:\mathrm{AL}=\mathrm{the}\:\mathrm{horizontal}\:\mathrm{distance}\:\mathrm{pointA}\:\mathrm{to}\:\mathrm{the}\:\mathrm{lower}\:\mathrm{hill} \\…
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Question Number 8860 by MNG last updated on 02/Nov/16 Commented by ridwan balatif last updated on 02/Nov/16 $$\mathrm{2}.\:\mathrm{tanA}+\mathrm{cotA}=\mathrm{2cosec2A} \\ $$$$\:\:\:\:\:\:\frac{\mathrm{sinA}}{\mathrm{cosA}}+\frac{\mathrm{cosA}}{\mathrm{sinA}}=\mathrm{2cosec2A} \\ $$$$\:\:\:\:\:\frac{\mathrm{sin}^{\mathrm{2}} \mathrm{A}+\mathrm{cos}^{\mathrm{2}} \mathrm{A}}{\mathrm{sinA}×\mathrm{cosA}}=\mathrm{2cosec2A} \\…
Question Number 8859 by lepan last updated on 02/Nov/16 $${If}\:\frac{{tan}\left(\alpha+\beta−\gamma\right)}{{tan}\left({a}−\beta+\gamma\right)}=\frac{{tan}\gamma}{{tan}\beta}\:{then}\:{show} \\ $$$${that}\:{sin}\left(\beta−\gamma\right)=\mathrm{0}\:{or}\:{sin}\mathrm{2}\alpha+{sin}\mathrm{2}\beta+{sin}\mathrm{2}\Upsilon=\mathrm{0}. \\ $$ Answered by myintkhaing last updated on 03/Nov/16 Commented by myintkhaing last…
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Question Number 8653 by tawakalitu last updated on 19/Oct/16 Answered by prakash jain last updated on 19/Oct/16 $$\mathrm{2sin}\:{x}+\mathrm{3cos}\:{y}=\mathrm{5} \\ $$$$\mathrm{sin}\:{x}\leqslant\mathrm{1} \\ $$$$\mathrm{cos}\:{y}\leqslant\mathrm{1} \\ $$$$\mathrm{If}\:\mathrm{2sin}\:{x}+\mathrm{3cos}\:{y}=\mathrm{5} \\…
Question Number 139724 by mathlove last updated on 30/Apr/21 $${with}\:{out}\:{cientopic}\:{calculeter} \\ $$$${sin}\mathrm{9}=? \\ $$ Commented by Dwaipayan Shikari last updated on 30/Apr/21 $${sin}\left(\mathrm{9}°\right)\:? \\ $$…
Question Number 139710 by ajfour last updated on 30/Apr/21 $${If}\:\:\mathrm{3sin}\:{x}+\mathrm{5cos}\:{x}=\mathrm{5} \\ $$$${find}\:{value}\left({s}\right)\:{of}\:\:\mathrm{5sin}\:{x}−\mathrm{3cos}\:{x}. \\ $$ Answered by MJS_new last updated on 30/Apr/21 $$\mathrm{3sin}\:{x}\:+\mathrm{5cos}\:{x}\:=\mathrm{5} \\ $$$$\frac{\mathrm{3tan}\:{x}+\mathrm{5}}{\:\sqrt{\mathrm{1}+\mathrm{tan}^{\mathrm{2}} \:{x}}}=\mathrm{5}\:\Rightarrow\:\mathrm{tan}\:{x}\:=\mathrm{0}\vee\mathrm{tan}\:{x}\:=\frac{\mathrm{15}}{\mathrm{8}}…