How to write math problems in senior three?
AsinB =-bsin(A+π/3)Sinanb =-sinbsin(A+π/3)Sina =-sin(A+π/3)Sina =- 1/2 Sina-√3/2 cos a3/2 Sina =-√3。 2bcsina=√3/4*c^2 1/2bcsin5π/6=√3/4*c^2b=√3cb/c=sinc/sinb=√3sinc=√3sinbsinc=√3sinb=√3sin(30-c)sinc=√3( 1/2cosc-√3/2sinc)=√3/2cosc-3/ 2sinc5/ 2sinc=√3/2cosccosc=5sinc/√3(cosc)^2+(sinc)^2= 128(sinc)^2=3sinc=√2 1/ 14