Home
Class 12
MATHS
If the angle betwee overline(a)andoverli...

If the angle betwee `overline(a)andoverline(b)(overline(a),overline(b)neoverline(0))` is `(5pi)/(6)` and magnitude of projection of `overline(a)" on"overline(b)` is `6//sqrt(3)`,then `|overline(a)|=`.......

A

6

B

`(sqrt(3))/(2)`

C

12

D

4

Text Solution

Verified by Experts

Promotional Banner

Similar Questions

Explore conceptually related problems

If overline(x)andoverline(y) are unit vectors and overline(x)*overline(y)=0 then ........

(overline(x)-overline(y))xx(overline(x)+overline(y))= ....... , where overline(x),overline(y) inR^(3)

Fill in the blank. _15^32P to .....+overline(e)+overline(v) (anti neutrino)

If P(A)=(3)/(8), P(B)=(5)/(8) and P(AcupB)=(3)/(4) , then P((overline(A))/(overline(B))) is equal to

On the xy plane where O is the origin, given points, A(1, 0), B(0, 1) and C(1, 1) . Let P, Q, and R be moving points on the line OA, OB, OC respectively such that overline(OP)=45t overline((OA)),overline(OQ)=60t overline((OB)),overline(OR)=(1-t) overline((OC)) with t>0. If the three points P,Q and R are collinear then the value of t is equal to

If P(A)=(1)/(4), P(B)=(1)/(13) and P(AcapB)=(1)/(52) , then the value of P(overline(A)capoverline(B)) , is

If two events A and B are such that P(overline(A))=0.3, P(B)=0.4 and P(Acapoverline(B))=0.5, then P((B)/(Acupoverline(B))) is equal to

For A(1, -2, 4), B(5,-1,7),C(3,6,-2), D(4,5,-1) , the projection of bar(AB)" on " bar(CD) is ______

Statement-1: if A and B are two events, such that 0 lt P(A),P(B) lt 1, then P((A)/(overline(B)))+P((overline(A))/(overline(B)))=(3)/(2) Statement-2: If A and B are two events, such that 0 lt P(A), P(B) lt 1, then P(A//B)=(P(AcapB))/(P(B)) and P(overline(B))=P(A capoverline(B))+P(overline(A) cap overline(B))