Category: Arithmetic

Question Number 46816 by peter frank last updated on 31/Oct/18 Answered by tanmay.chaudhury50@gmail.com last updated on 01/Nov/18 $$slope{M}_1=\frac{\frac{a}{m_2}-\frac{a}{m_1}}{a(m_2-m_1)}$$$$\:\:\:\:\:{M}_{\mathrm{1}}…

Question Number 46814 by peter frank last updated on 31/Oct/18 Answered by tanmay.chaudhury50@gmail.com last updated on 01/Nov/18 $$cos\theta =\frac{{OP}^2+{OQ}^2-{PQ}^2}{2\times OP\times OQ}$$$$\:\:\:=\frac{\left({a}^{\mathrm{2}} +{b}^{\mathrm{2}} \right)+\left({c}^{\mathrm{2}}…

Question Number 46737 by peter frank last updated on 30/Oct/18 Answered by tanmay.chaudhury50@gmail.com last updated on 31/Oct/18 $$Q(asin{\theta }_1,bcos{\theta }_1)$$$${R}\left({asin}\theta_{\mathrm{2}} ,{bcos}\theta_{\mathrm{2}} \right) \…

Question Number 46736 by peter frank last updated on 30/Oct/18 Commented by tanmay.chaudhury50@gmail.com last updated on 31/Oct/18 $$ihaveseentheproof\dots herebyiamsharingit..$$ Answered by tanmay.chaudhury50@gmail.com last updated…

Question Number 177768 by Linton last updated on 08/Oct/22 $$usepertfectlysquarenumberstofind$$$$\sqrt{11}$$$$nocalculatorsallowed$$ Commented by Linton last updated on 09/Oct/22 $${a}^{\frac{\mathrm{1}}{\mathrm{2}}} =\:\frac{{a}+{b}}{\mathrm{2}\sqrt{{b}}}\:{where}\:{b}\:{is}\:{a}\:{perfect}\:{square}…