sin 60∘cos 45∘tan 45∘cot 60∘sec 30∘cosec 90∘
1√6
√3√2
√2√3
√6
= (√32)×(1√2)×1×(1√3)×(2√3)×1
= 1√6
Evaluate: sin30∘+tan45∘−cosec60∘cot45∘+cos60∘−sec30∘.