Trigonometry
Inverse Trigonometric Functions
MCQ (Single Correct Answer)Subjective
1
WB JEE 2017
MCQ (Single Correct Answer)
+2
-0.5
If the sum of two unit vectors is a unit vector, then the magnitude of their difference is
A
$$\sqrt 2 $$ units
B
2 units
C
$$\sqrt 3 $$ units
D
$$\sqrt 5 $$ units
WB JEE Subjects