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If direction cosines of a line are 1/b, 1/b, 1/b then find the value of b. |
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Answer» n that direction of COSINES of LINE is 1/c, 1/c, 1/c We know the SUM of the squares of the direction cosines is one. i.e. (1/c)^2 + (1/c)^2 + (1/c)^2 3/c^2=1 c^2 = 3 c=± |
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