◎◎◎ shape ⪢⪢
A _____ is a simple form like a square or circle.
http://qindex.info/i.php?x=14323
○○○ complex number ⪢⪢
A _____ is a number that can be expressed in the form a + bi where a and b are real numbers and i is the square root of -1. #math
http://qindex.info/i.php?x=9607
○○○ 1803 Louisiana Purchase ⪢⪢
The Louisiana Purchase was basically a real estate deal. In 1803 the U.S. bought about 2 million square kilometers of land called "Louisiana Territory" from France.
http://qindex.info/i.php?x=10240
○○○ square off ⪢⪢
British and Estonian tanks square off against each other in a snowy wasteland not far from the Russian border. → square, jitter
http://qindex.info/i.php?x=19018
○○○ square off ⪢⪢
NATO partners locked in a simulated battle with the massive Russian military escalation near Ukraine sending jitters throughout this entire region. → lock, jitter
http://qindex.info/i.php?x=19017
○○○ missile ⪢⪢
Video from the state emergency services shows a missile hitting the regional administration building in Ukraine's second largest city. The central freedom square and residential areas were also targeted.
http://qindex.info/i.php?x=20224
 BC 0500? Hippasus
According to Pythagoras theorem the diagonal length of a square with each side measuring one unit would be square root of two. The assumption that square root of two could be expressed as a ratio of two integers deduces a contradiction.
http://qindex.info/i.php?x=5026
 07 Square Roots, Cube Roots, and Other Roots
http://qindex.info/i.php?x=3800
 14 Solving Quadratics by Completing the Square
Solving Quadratics by Completing the Square
http://qindex.info/i.php?x=5082
 07 Square Roots, Cube Roots, and Other Roots
Square Roots, Cube Roots, and Other Roots
http://qindex.info/i.php?x=4992
 01 Hippasus
○ According to Pythagoras theorem the diagonal length of a square with each side measuring one unit would be square root of two. ○ The assumption that square root of two could be expressed as a ratio of two integers deduces a contradiction.
http://qindex.info/i.php?x=6563
 √2 ≈ 1.414
According to Pythagoras theorem the diagonal length of a square with each side measuring one unit would be square root of two. The assumption that square root of two could be expressed as a ratio of two integers deduces a contradiction. #math
http://qindex.info/i.php?x=9592
 211 √2
There is no rational number whose square is 2.
http://qindex.info/i.php?x=9710
◌◌◌ tools
wrench, spanner, monkey wrench, adjustable wrench, hammer, claw, mallet, paint roller, paintbrush, pliers, long-nose pliers, diagonal pliers, chisel, bradawl, file, trowel, screwdriver, putty knife, utility knife, scissors, L square, tape measure
http://qindex.info/i.php?x=27628
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