The reciprocal of the fraction 711 is
Match the column
Column AColumn B1.cos2π7 + cos4π7 + cos6π7 A.0 2.cosπ7 + cos2π7 +cos3π7 + cos4π7 + cos5π7 + cos6π7 B.123.sinπ11 + sin3π11 + sin5π11 + sin7π11 + sin9π11 C.−12