Menu Close

Category: Others

Question-120541

Question Number 120541 by 77731 last updated on 01/Nov/20 Answered by snipers237 last updated on 01/Nov/20 $${Using}\:\:{cos}\left({z}\right)=\underset{{n}=\mathrm{0}} {\overset{\infty} {\sum}}\frac{\left(−\mathrm{1}\right)^{{n}} {z}^{\mathrm{2}{n}} }{\left(\mathrm{2}{n}\right)!}\:,\:\mathrm{1}−{cosz}=\underset{{n}=\mathrm{1}} {\overset{\infty} {\sum}}\frac{\left(−\mathrm{1}\right)^{{n}} {z}^{\mathrm{2}{n}} }{\left(\mathrm{2}{n}\right)!}\:…

By-differentiating-x-1-x-with-respect-to-x-Evaluate-0-2-x-1-x-dx-

Question Number 54966 by Tawa1 last updated on 15/Feb/19 $$\mathrm{By}\:\mathrm{differentiating}\:\:\:\mathrm{x}\:\sqrt{\mathrm{1}\:+\:\mathrm{x}}\:\:\mathrm{with}\:\mathrm{respect}\:\mathrm{to}\:\mathrm{x}\:, \\ $$$$\mathrm{Evaluate},\:\:\:\:\int_{\:\mathrm{0}} ^{\:\mathrm{2}} \:\frac{\mathrm{x}}{\:\sqrt{\mathrm{1}\:+\:\mathrm{x}}}\:\:\mathrm{dx} \\ $$ Commented by maxmathsup by imad last updated on 17/Feb/19…

Question-186026

Question Number 186026 by Michaelfaraday last updated on 31/Jan/23 Answered by mr W last updated on 31/Jan/23 $$\left({b}\right) \\ $$$${T}_{{A}−{B}} =\mu{m}_{{A}} {g}=\mathrm{0}.\mathrm{35}×\mathrm{25}=\mathrm{8}.\mathrm{75}\:{N}\:\checkmark \\ $$$${T}_{{B}−{C}} =\mu{m}_{{A}}…

Question-185996

Question Number 185996 by Noorzai last updated on 30/Jan/23 Answered by Rasheed.Sindhi last updated on 30/Jan/23 $$\mathrm{M}×\mathrm{3}=\mathrm{18}\Rightarrow\mathrm{M}=\mathrm{6} \\ $$$$\mathrm{2L}+\mathrm{1}=\mathrm{5},\mathrm{15}\Rightarrow\mathrm{L}=\mathrm{2},\mathrm{7}\Rightarrow\mathrm{K}=\mathrm{2},\mathrm{1} \\ $$$$\mathrm{K}+\mathrm{L}+\mathrm{M}=\mathrm{2}+\mathrm{2}+\mathrm{6}=\mathrm{10} \\ $$$$\mathrm{Or} \\ $$$$\mathrm{1}+\mathrm{7}+\mathrm{6}=\mathrm{14}\:\:\:\:\:…

Question-185900

Question Number 185900 by Mingma last updated on 29/Jan/23 Answered by mr W last updated on 29/Jan/23 $${say}\:{AB}={BC}={a} \\ $$$$\angle{ABQ}=\mathrm{15}° \\ $$$${DQ}={a}\left(\mathrm{1}−\mathrm{tan}\:\mathrm{15}°\right) \\ $$$${DR}=\frac{{DQ}}{\mathrm{tan}\:\mathrm{15}°} \\…

Question-54825

Question Number 54825 by Tawa1 last updated on 12/Feb/19 Answered by tanmay.chaudhury50@gmail.com last updated on 12/Feb/19 $${v}_{\mathrm{0}} ={volume}\:{of}\:{glass}\:{bottle}\:{before}\:{heating} \\ $$$${v}_{\mathrm{0}} \left(\mathrm{1}+\gamma_{{g}} \bigtriangleup{T}\right)={volume}\:{of}\:{glass}\:{bottle}\:{after}\:{heating} \\ $$$${v}_{\mathrm{0}} \left(\mathrm{1}+\gamma_{{m}}…