1.The value of cot712∘+tan6712∘−cot6712∘−tan712∘\cot 7\dfrac{1}{2}^\circ + \tan 67\dfrac{1}{2}^\circ - \cot 67\dfrac{1}{2}^\circ - \tan 7\dfrac{1}{2}^\circcot721∘+tan6721∘−cot6721∘−tan721∘ isa.a rational numberb.irrational numberc.2(3+23)2(3+2\sqrt{3})2(3+23)d.2(3−3)2(3-\sqrt{3})2(3−3)Login to continueOnly logged in users canattempt or see the solution.
