Question

б) ctg 43π/6 + sin 28π/3

Answer 1

сtg($7 pi + frac{ pi }{6}$) + sin($9 pi + frac{ pi }{3}$)=ctg$frac{ pi }{6}$+sin$frac{ pi }{3}$=ctg30+sin60= $sqrt{3}$+$frac{ sqrt{3} }{2}$=$frac{3 sqrt{3} }{2}$