are e and b always perpendicular?
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For electromagnetic waves E and B are always perpendicular to each other and perpendicular to the direction of propagation. The direction of propagation is the direction of E x B.
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Correct answer: Two lines are perpendicular if and only if their slopes are negative reciprocals. To find the slope, we must put the equation into slope-intercept form, , where equals the slope of the line.
255280
Two vectors A and B are perpendicular if and only if their scalar product is equal to zero. ... The condition for two vectors A = (Ax , Ay) and B = (Bx , By) to be parallel is: Ax By = Bx Ay.
709398
Two vectors A and B are perpendicular if and only if their scalar product is equal to zero.
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If two non-vertical lines in the same plane intersect at a right angle then they are said to be perpendicular. Horizontal and vertical lines are perpendicular to each other i.e. the axes of the coordinate plane. The slopes of two perpendicular lines are negative reciprocals.
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If the slopes of two lines are negative reciprocals, the lines are perpendicular. since their slopes of 0 have undefined reciprocals.
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Perpendicular lines have slopes that are opposite reciprocals of each other. Therefore, the slope of the line is -2.
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You can say two vectors are at right angles to each other, or orthogonal, or perpendicular, and it all means the same thing. Sometimes people say one vector is normal to another, and that means the same thing, too.
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AB is a line segment P and Q are point on opposite sides of AB such that each of them is equidistant from the points A and B. Show that the line PQ is perpendicular bisector of AB. ∴,PQ is perpendicular bisector of AB. Hence proved.
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Parallel and perpendicular lines. If two non-vertical lines that are in the same plane has the same slope, then they are said to be parallel. Two parallel lines won't ever intersect. If two non-vertical lines in the same plane intersect at a right angle then they are said to be perpendicular.
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Horizontal and vertical lines are always perpendicular: therefore, two lines, one of which has a zero slope and the other an undefined slope are perpendicular.
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Two vectors u = (a,b) and v = (c,d) in a coordinate plane are perpendicular if and only if their scalar product a*c + b*d is equal to zero: a*c + b*d = 0. ... Since the scalar of the vectors u and v is zero, these vectors are perpendicular.
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Proof: Given ABCD, let the diagonals AC and BD intersect at E, we must prove that AE ∼ = CE and BE ∼ = DE. The converse is also true: If the diagonals of a quadrilateral bisect each other, then the quadrilateral is a parallelogram. Theorem: Opposite angles of a parallelogram are congruent to each other.
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Two vectors are perpendicular when their dot product equals to .
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In triangle ABC, AB is perpendicular to BC and BD is perpendicular to AC. ... Because 2 of the sides are perpendicular, the triangle must be a right triangle with AC as hypotenuse. Assuming that point D lies on the hypotenuse, then BD is a segment connecting vertex of the right angle to the hyp.
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Perpendicular lines have the same slope. Parallel lines have opposite sign, reciprocal slopes.
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The diagonals of a parallelogram are sometimes congruent. The diagonals of a rhombus are always perpendicular. The consecutive angles of a parallelogram are never complementary. A square is always a rhombus.