VectorMedium
Question
are there non coplanar unit vectors. 
is inclined at an angle α to the plane of 
and 
and 
are equally inclined at an angle β to 
. The vector 
is equal to -Options
A.
sin2 α cos β 
sin2 α cos β B.sin2 β cos α
sin2 β cos α C.2 α sin2β 
2 α sin2β D.sin2 α sin β 
sin2 α sin β Solution
= (sin α sin β)
cross product = (sin α sin β)
= (sin α sin β)
=
(sin α sin2β) = (sin α sin β)cross product = (sin α sin β)
= (sin α sin β)
=
(sin α sin2β) 
Create a free account to view solution
View Solution FreeMore Vector Questions
If p.v. of vertices of a ᐃABC are 2î + 4ĵ − , 4î + 5ĵ + , 3î 6ĵ − then w...The unit vector perpendicular to vectors î + ĵ and ĵ + is-...If position vectors of the vertices of a triangle are 4î + 5ĵ + 6, 5î + 6ĵ + 4 , and 6î + 4...Let $\overrightarrow{AB} = 2\widehat{i} + 4\widehat{j} - 5k$ and$\overrightarrow{AD} = \widehat{i} + 2\widehat{j} + \lam...If , , , are position vectors of the points A,B,C and D such that + = + , then ABCD is a -...