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Q. |
Two lines L1 and L2 having Parametric equations are P1=[3 4 7]+u[2 2 -6] and P2=[1 5 -2]+u[1 4 2]. Tangent vector for line L1 |
A. | 2i+2j-6k |
B. | 2i+2j+6k |
C. | 2i-2j-6k |
D. | 6-2j-2k |
Answer» A. 2i+2j-6k |
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