A body is in equilibrium under the action of three coplanar forces `P,Q and R` as shown in figure. Select the correct statement.

Options

A. `(P)/(sinalpha)=(Q)/(sinbeta)=(R)/(singamma)`
B. `(P)/(cosalpha)=(Q)/(cosbeta)=(R)/(cosgamma)`
C. `(P)/(tanalpha)=(Q)/(tanbeta)=(R)/(tangamma)`
D. `(P)/(sinbeta)=(Q)/(singamma)=(R)/(sinalpha)`

Answer

A

Explanation

As stated in Lami's therem