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Find value of n for which vector (i+5j+nk) is perpendicular to vector(2i-j+k).
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Answer:
n= 3
Step-by-step explanation:
.step 1st,
find out dot product of both the vector
:-( I+5j+nk ) . (2i-j+k)
than we got:-(2i-5j+nk)
hence the angle between the vector is 90° so product will be zero.
than, 2-5+n = 0
.. so,n = 3 ( ans)
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