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The angle between the pair of lines given by →r1=^i+6^j+4^k+λ(2^i−^j+3^k) →r2=4^i+2^j−^k+λ(^i+2^j−^k) is (a) sin−1(32√21) (b) cos−1(32√21) (c) −sin−1(32√21) (d) −cos−1(32√21) |
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Answer» The angle between the pair of lines given by →r1=^i+6^j+4^k+λ(2^i−^j+3^k) →r2=4^i+2^j−^k+λ(^i+2^j−^k) is (a) sin−1(32√21) (b) cos−1(32√21) (c) −sin−1(32√21) (d) −cos−1(32√21) |
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