Is #2+-1sqrt3# the same as #2+-sqrt3# ? Precalculus Vectors in the Plane Unit Vectors 1 Answer Somebody N. Mar 6, 2018 Yes. Explanation: #1sqrt(3)=1xxsqrt(3)=sqrt(3)# Multiplying any real number by #1# leaves the number unchanged. #1# is said to preserve the identity in multiplication. Answer link Related questions What is a unit vector? How do I find the unit vector of a plane? How do I calculate a unit vector? How do I multiply two unit vectors? What are unit vectors used for? What is a direction vector? What does it mean to normalize a vector? How do you find the principal unit normal vector to the curve at the specified value of the... An airplane has an airspeed of 500 kilometers per hour bearing N45°E. The wind velocity is 60... How do you find a unit vector that is orthogonal to a and b where #a = −7 i + 6 j − 8 k# and ... See all questions in Unit Vectors Impact of this question 1910 views around the world You can reuse this answer Creative Commons License