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bisectrix

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bisectrix
bisectrix (baɪˈsɛktrɪks) [f. prec.: see -trix.] = prec.; spec. in biaxial polarization, the line bisecting the angle between the two axes of polarization (= linea bisectrix).1854 Dana Min. Introd. 20 A line bisecting the..angle between these optical axes is called a bisectrix. Oxford English Dictionary
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Bisectrix of a triangle in tikz I'm trying to make a triangle with its bisectrices. I made the first bisectrix with the command: \begin{tikzpicture}[scale=3] \coordinate (A) at (1,0); \coord...
One approach to drawing the bisector of $\angle BAC$ with tikz is to define two coordinates, say $AtB$ and $AtC$ on $AB$ and $AC$, respectively, at equal distance from $A$. Then one computes the midpoint of the segment connecting $AtB$ to $AtC$; finally, one draws the line from $A$ to that midpoint....
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Nyerereite
It shows a center acute bisectrix and a birefringence of approximately 0.023. wikipedia.org
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Find the bisector in the given condition I need to find _x_ which is bisectrix for that 60°. Given red segments 9 and 12 cm and a circle. It`s seems like school exercise, but i`m I am get stuck, please help (have trie...
![enter image description here]( Let $|AB|=c=9$, $|AC|=b=12$, $|AD|=d=?$, $\angle CAB=\alpha=60^\circ$, $\angle DAB=\angle CAD=\tfrac12\,\alpha=30^\circ$. Then by the cosine rule we have \begin{align} a^2&=b^2+c^2-2bc\cos\alpha=b^2+c^2-bc=117 ,\\\ a&=3\sqrt{13} . \end{align} The area $S$ and the rad...
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Pleochroism
Where there are two optical axes, the acute bisectrix of the axes gives Z for positive minerals and X for negative minerals and the obtuse bisectrix gives wikipedia.org
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Heulandite
The two minerals may, however, be readily distinguished by the fact that in heulandite the acute positive bisectrix of the optic axes emerges perpendicular wikipedia.org
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-trix
-trix suffix, ending of Latin feminine agent-nouns (with stems in -trīc-, acc. -tricem, whence Fr. -trice: see -trice), corresponding to masculines in -tor, as adjūtrix female helper, bellātrix female warrior, imperātrix female commander, empress, inventrix female discoverer, vēnātrix huntress, etc.... Oxford English Dictionary
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Optical mineralogy
If the section is perpendicular to a "bisectrix" (see Crystallography) a black cross is seen which on rotation opens out to form two hyperbolas, the apices wikipedia.org
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Similar triangles eventually Through the A-peak of the ABCD square is built a right that crosses the country BC at the point P. The bisector(bisectrix) of the angle PAD crosses the side to the point L. Find DL + BP if...
Let the side of the square be $s = AD = AB$ and let $\theta = \angle DAL = \angle LAP$. Also let lengths $x = AP, y = DL$ and $z = BP$. Then $\angle ABP = 90^\circ - 2\theta$. In the right triangle $ABP$ we have $$ z = x \sin (90^\circ - 2\theta) = x \cos(2\theta)= x (1 - 2\sin^2\theta) \\\ s = x \c...
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Find the Equations of the straight line with the help of the given information. Suppose two straight lines **3x+4y=5** & **4x-3y=15** cut each other at the point **A**. Take 2 points **B** & **C** on those 2 lines, su...
instead AB=BC 1) It is not difficult to check that line _ax+by+c=0_ is ortogonal to vector _(a,b)_. 2) Target lines are parallel to one of the two bisectrix So one of the bisectrix vector equal _n1+n2 = (7,1)_ , second is ortogonal to this (-1,7). 4) So answer is two family of lines: _7x+y+c=0_ and _-x+7y+
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obtuse
▪ I. obtuse, a. (əbˈtjuːs) [ad. L. obtūs-us dulled, blunt, pa. pple. of obtundĕre to obtund. Cf. F. obtus, -use (1542 in Hatz.-Darm.).] Blunt (in various senses): opp. to acute. 1. lit. Of a blunt form; not sharp or pointed: esp. in Nat. Hist. of parts or organs of animals or plants. The opposite of... Oxford English Dictionary
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