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QP = √(PR² - QR²)
QP = √(5² - 2²)
QP = √21
sin P = QR/PR = 2/5
cos R = QR/PR = 2/5
Tan R = QP/QR = √21 / 2
Sec P = PR/QP = 5 / √21
Jadikan jawaban terbaik ya ^_^