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Let O be the origin, and O X , O Y ...

Let `O` be the origin, and ` O X , O Y , O Z ` be three unit vectors in the direction of the sides ` Q R ` , ` R P ` , ` P Q ` , respectively of a triangle PQR. `| O X xx O Y |=` (a)`sin(P+R)` (b) `sin2R` `(c)sin(Q+R)` (d) `sin(P+Q)dot`

A

sin(P+Q)

B

sin(P+R)

C

sin(Q+R)

D

sin2R

Text Solution

Verified by Experts

The correct Answer is:
A
sin R = sin (P+Q)
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