Calculating direction ratios show that t...

Calculating direction ratios show that the triangle formed by joining the points (2, 3, 1), (-2, 2, 0) and (0, 1, -1) in right-angled.

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CHHAYA PUBLICATION-DIRECTION COSINES AND DIRECTION RATIOS-Exercise 3 : Short Answer Type Questions

Show that the staright line joining the points (-1, 0, -2) and (1, 3, ...
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Prove that the straight line joining the points (4, 5, 0) and (5, 3, 3...
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Calculating the angle of the triangle, prove that the points A(3, 4, -...
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Find the acute angle between x-axis and the straight line joining the ...
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Calculating direction ratios show that the triangle formed by joining ...
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Straight lines OA and OB are drawn from the origin O, if the direction...
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Find the coordinates of the foot of the perpendicular drawn from the p...
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Determine the values of a and b for which the straight line joining th...
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If the straight line joining the points (4, -3, 2) and (3, -1, 5) is p...
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Find the acute angle between two straight lines whose direction number...
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Let A(2, -3, -1), B(4, 5, 2), C(-3, 4, 1) and D(2, 3, 5) are four give...
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Using direction ratios prove that the points (4, 2, -6), (5, -3, 1), (...
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Using direction numbers show that points P(4, 7, 8) and Q(2, 3, 4), R(...
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Let l(1), m(1), n(1) and l(2), m(2), n(2) be the direction ratios of t...
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Let P(-9, 4, 5) and Q(11, 0, -1) be two given points. If O be the orig...
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Let A(-2, 0, 3), B(0, 3, -3), C(3, 3, 5) and D(5, 4, 3) be four given ...
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Find the acute angle between the two straight lines whose direction co...
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Find the angle between the two straight lines whose direction cosines...
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Find the angle between the two straight lines whose direction cosines...
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Find the acute angle between the two straight lines whose direction co...
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