ΔPQR is right-angled at R. The lengths of the legs are PR = (x+4) cm and QR = x cm, where x>0.
(a) Show that the hypotenuse PQ equals 2x2+8x+16 cm.
(b) Hence, find sin P in its simplest form.
a. (a) Show that PQ = 2x2+8x+16 cm.
b. (b) Hence, find sin P in simplest form.