Find the value of `56^2`

Find the value of tan56^(@)-tan11^(@)-tan56^(@).tan11^(@) .

Find the value of tan 56^(@)-tan 11^(@)-tan 56^(@).tan 11^(@)

If (n+3)! =56 x (n+1)!, Find the value of n.

If the area of the triangle formed by the vertices (p,p),(5,6),(5,-2) is 32 sq. units. Find the value of p.

Four vertices of a quadrilateral are (1,2), (-5,6), (7,-4) and (k,-2) and its area is zero. Find the value of k.

If (n!)/((n-2)!)=56 , find the value of n

Find the value of (cos 56^@)/(sin 34^@) .