Buktikan identitas trigonomeri berikut 1.2-sec^2A/sec^2A=1-2sin^2A 2.sec^2A-1/sec^2=sin^2A By Admin ReiPosted on December 5, 2022 Buktikan identitas trigonomeri berikut 1.2-sec^2A/sec^2A=1-2sin^2A 2.sec^2A-1/sec^2=sin^2A penyelesaian terlampir