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(a) If sin `theta`=`3/5` find:
(i) cos `theta`
(ii) tan `theta`
(b) If sin `theta`=`1/2`, find tan `theta`.
(c) If tan `theta`=`1/root 2 3` find cos `theta`.
(d) If cos `theta`=`1/root (2) 2`, find sin `theta`.