Find the values of (i) sin 60° / cos^2 45° - 3 tan30° + 5cos 90° (ii) 2√2 cos 45° cos 60° + 2√3sin 30° tan 60° - cos 0° (iii) 4/5 tan^2 60°- 2/sin^2 30° - 3/4tan^2 30°

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Find the values of :
(i) 7 sin 30° cos 60°
(ii) 3 sin² 45° + 2 cos² 60°
(iii) cos² 45° + sin² 60° + sin² 30°
(iv) cos 90° + cos² 45° sin 30° tan 45°.