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Category: Algebra

Prove-that-two-straight-lines-with-complex-slopes-1-and-2-are-parallel-and-perpendicular-according-as-1-2-and-1-2-0-Hence-if-the-straight-lines-z-z-c-0-and-z

Question Number 19505 by Tinkutara last updated on 12/Aug/17 Provethattwostraightlineswithcomplexslopesμ1andμ2areparallelandperpendicularaccordingasμ1=μ2andμ1+μ2=0.Henceifthestraight$$\mathrm{lines}\:\bar {\alpha}{z}\:+\:\alpha\bar {{z}}\:+\:{c}\:=\:\mathrm{0}\:\mathrm{and}\:\bar…

Find-A-and-prove-that-2021-A-if-abcd-A-a-d-1-c-b-c-a-b-b-c-

Question Number 150571 by mathdanisur last updated on 13/Aug/21 FindAandprovethat2021AifabcdA,ad+1=cbc=a+bb+c Answered by Rasheed.Sindhi last updated on 15/Aug/21 $$\overline {\mathrm{abcd}}\in\boldsymbol{\mathrm{A}};\:\:\frac{\mathrm{a}}{\mathrm{d}\:+\:\mathrm{1}}\:=\:\frac{\mathrm{c}\:-\:\mathrm{b}}{\mathrm{c}}\:=\:\frac{\mathrm{a}\:+\:\mathrm{b}}{\mathrm{b}\:+\:\mathrm{c}};\mathrm{A}=? \