[" Thustration "2.62" Lat "a,b,c" be three unit voetors and "a" ,"b=a" i "d=0" ,frube and be "],[(pi)/(3)" ,then tind the value of "[" la "b" cli."]

Let A,B,C be three unit vectors and A.B= A.C=0. If the angel between B and C is pi/6 , then A is equals to

Let A,B,C be three unit vectors and A.B= A.C=0. If the angle between B and C is pi/6 , then A is equals to

If a=b cos((2pi)/3)= c cos((4pi)/3), then write the value of a b+b c+c a

If a, b, c are three unit vectors such that a + b + c = 0 , then a.b + b.c + c.a is equal to

Let A,B,C be the three angles such that A+B+C=pi , tan A.tan B=2 , then find the value of (cos A cos B)/(cos C)

Let A,B,C be the three angles such that A+B+C=pi , tan A.tan B=2 , then find the value of (cos A cos B)/(cos C)

If hat a , hat b ,a n d hat c are three unit vectors inclined to each other at angle theta, then the maximum value of theta is pi/3 b. pi/4 c. (2pi)/3 d. (5pi)/6

If hat a , hat b ,a n d hat c are three unit vectors inclined to each other at angle theta, then the minimum value of theta is pi/3 b. pi/4 c. (2pi)/3 d. (5pi)/6

Let A , B , C be the three angles such that A+B+C=pi . If T a nAtanB=2, then find the value of (cos(A-B))/(cosC)