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The direction cosines of aline satisfy the relations lambda(l+m)=na n dm n+n l+l m=0.The value of lambda,for which the two lines are perpendicular toeach other, isa. 1 b. 2 c. 1//2 d. noneof these |
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Answer» `DELTAZ xxDeltap_(z)ge(h)/(4pi)` |
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