`(cos11^(@)-sin11^(@))/(cos11^(@)+sin11^(@))` का मान है -

Prove that tan56^(@)=(cos11^(@)+sin11^(@))/(cos11^(@)-sin11^(@))

If tan theta = (cos 11^(@)+sin11^(@))/(cos11^(@)-sin11^(@)) and theta is the third quadrant find theta .

Prove that ( cos 11^(@) + sin 11^(@))/( cos 11 ^(@) - sin 11 ^(@)) = tan 56 ^(@).

If tan theta =(cos 11^(@) + sin 11^(@) )/( cos 11^(@)- sin 11^(@)) and theta is the third quadrant find theta .

Match the following : {:(,"List - I",,"List - II"),((1),cot((pi)/(4)+theta).cot((pi)/(4)-theta),(a),0),((2),sin(45^(@)+theta)-cos(45^(@)-theta),(b),tan 56^(@)),((3),(cos11^(@)+sin11^(@))/(cos11^(@)-sin11^(@)),(c ),(sqrt(3))/(2)),((4),sin^(2)75^(@)-sin^(2)15^(@),(d),1):}

tan theta=(cos11^(0)+sin11^(0))/(cos11^(0)-sin11^(0)) and theta is in the third quadrant,find theta