If x×tan(45∘)×cos(60∘)=sin(60∘)×cot(60∘), then x=
sin 60∘cos 45∘tan 45∘cot 60∘sec 30∘cosec 90∘
Show that:
(i) 1−sin 60∘cos 60∘=tan 60∘−1tan 60∘+1
(ii) cos 30∘+sin 60∘1+sin 30∘+cos 60∘=cos 30∘