In Problem 15-20, express each proposition as an English sentence and determine whether it is true or false, where it is true of false, where r and s are the propositions r : " the moon is a cube" s : " rain is wet" The contrapositive of r → s
In Problem 15-20, express each proposition as an English sentence and determine whether it is true or false, where it is true of false, where r and s are the propositions r : " the moon is a cube" s : " rain is wet" The contrapositive of r → s
Solution Summary: The author analyzes the contrapositive of rto s as an English sentence, and determines whether the provided proposition is true or false.
In Problem 15-20, express each proposition as an English sentence and determine whether it is true or false, where it is true of false, where
r
and
s
are the propositions
(4) (8 points)
(a) (2 points) Write down a normal vector n for the plane P given by the equation
x+2y+z+4=0.
(b) (4 points) Find two vectors v, w in the plane P that are not parallel.
(c) (2 points) Using your answers to part (b), write down a parametrization r: R² —
R3 of the plane P.
(2) (8 points) Determine normal vectors for the planes given by the equations x-y+2z = 3
and 2x + z = 3. Then determine a parametrization of the intersection line of the two
planes.
(3) (6 points)
(a) (4 points) Find all vectors u in the yz-plane that have magnitude [u
also are at a 45° angle with the vector j = (0, 1,0).
= 1 and
(b) (2 points) Using the vector u from part (a) that is counterclockwise to j, find an
equation of the plane through (0,0,0) that has u as its normal.
Chapter 7 Solutions
Finite Mathematics for Business, Economics, Life Sciences, and Social Sciences (14th Edition)
College Algebra with Modeling & Visualization (5th Edition)
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MFCS unit-1 || Part:1 || JNTU || Well formed formula || propositional calculus || truth tables; Author: Learn with Smily;https://www.youtube.com/watch?v=XV15Q4mCcHc;License: Standard YouTube License, CC-BY