Question 1097961
{{{ c^2 = a^2 + b^2 }}}
{{{ cos( theta ) = b/c }}}
{{{ sec( theta ) = c/b }}}
and
{{{ tan( theta ) = a/b }}}
{{{ tan( theta ) = 2/1 }}}
{{{ c^2 = 2^2 + 1^2 }}}
{{{ c^2 = 4 + 1 }}}
{{{ c^2 = 5 }}}
{{{ c = sqrt(5) }}}
and
{{{ sec( theta ) = sqrt( 5 )/1 }}}
{{{ sec( theta ) = sqrt( 5 ) }}}