Properties of TriangleHard
Question
Let 
be a unit vector and 
is a nonzero vector not parallel to 
. The angles of the triangle, two of whose sides are represented by 
and 
are
be a unit vector and is a nonzero vector not parallel to . The angles of the triangle, two of whose sides are represented by and areOptions
A.
B.
C.
D.None
Solution
here
∠ABC = 90o
tan θ
θ = π/3
∠ABC = π/2 : ∠BAC = π/6
∠ACB = π/3
Create a free account to view solution
View Solution FreeMore Properties of Triangle Questions
Consider ᐃABC with their usual notations. Let x3 - αx2 + βx - γ = 0 has roots a,b and c, then -...In ᐃABC, a sin (B − C) + b sin (C − A) + c sin (A − B) =...In a triangle ABC, (b + c) cosA + (c + a) cosB + (a + b) cosC...r1 + r2 =...In any ᐃABC, cosA + cosB + cosC =...