If | a b |= a ~b then angle between a and b is

Mathematics · JEE Main · NTA Exams — Three Dimensional Geometry

1. 0°
2. 90°
3. 60°
4. 45°

Answer

(D) 45°

Sign up free on Edukali to view the step-by-step worked solution and practice thousands of similar questions.

Related practice questions

• If a =3 i -2 j + k and b =- i + j + k , then the unit vector parallel to a + b , is
• The angle between the lines joining the points (1,0,-3),(2,-1,2) and (1,1,1),(3,2,0) respectively, is
• The angle between the planes, 2x – y + z = 6 and x + y + 2z = 7 is
• If the given planes, ax + by + cz + d = 0 and a´x + b´y + c´z + d´ = 0 be mutually perpendicular, then:
• The plane ax + by + cz = 1 meets the co-ordinate axes in A, B and C. The centroid of the triangle is :
• The vector c , directed along the internal bisector of the angle between the vectors, a =7 i -4 j -4 k and b…
• If i , j , k are position vectors of A, B, C and AB = CX , then position vector of X is
• The equation of the plane which is right bisector of the line joining (2, 3, 4) and (6, 7, 8), is :

More Three Dimensional Geometry questions · Browse all practice questions