Mathematics, 18.06.2020 03:57 kailinaguilar9455

To multiply two numbers geometrically, Descartes said: Let AB be taken as unity, and let it be required to multiply BD by BC. I have only to join the points A and C, and draw DE parallel to CA; then BE is the product of the lengths of BD and BC. Show that the length of BE is the product of the lengths of BD and BC

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Time remaining01: 45: 56complete the proof to show that abcd is a parallelogram.4- 2-32-4--b(-3,4)the-4 + 23+ 2unthe slope of bc isthe slope of ad is -) = 4+2 =-the slope of cd is 27 434) = 2 + 1 -the slope of ba is - - 4+2 -bc | ad and cd / ba because the+2-2c(22)432-3=-6.= -6.-$ 4342 -1a(2-2)therefore, positeabcd is a parallelogram because both pairs (sides are parallel. d(3,-4)save and exitnextsubmitmark this and retum

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To multiply two numbers geometrically, Descartes said: Let AB be taken as unity, and let it be requi...