Question

sin(0+75)+cos(0+45)-√3cos(0+15)

Answer 1

sin(θ+75)+cos(θ+45)-√3cos(θ+15) =sin(θ+15+60)+cos(θ+45)-√3cos(θ+15) =sin(θ+15)cos60+cos(θ+15)sin60+cos(θ+45)-√3cos(θ+15) =1/2sin(θ+15)+√3/2cos(θ+15)+cos(θ+45)-√3cos(θ+15) =1/2sin(θ...