If A=[2cos60∘−2sin30∘−tan45∘cos0∘],B=[cot45∘cosec 30∘s – InterviewSolution

1.	If A=[2cos60∘−2sin30∘−tan45∘cos0∘],B=[cot45∘cosec 30∘sec60∘sin90∘], then AB is equal to
Answer» If $A = [\begin{matrix} 2 cos 60^{\circ} & - 2 sin 30^{\circ} - tan 45^{\circ} & cos 0^{\circ} \end{matrix}], B = [\begin{matrix} cot 45^{\circ} & cosec 30^{\circ} sec 60^{\circ} & sin 90^{\circ} \end{matrix}],$ then $A B$ is equal to

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