if $$m+{1\over(m-2)}=4$$,then find the value of  $$ (m-2)^2+ \left({{1\over {m-2}}} \right)^2 \ $$

If x = – 1, then the value of   $$ {1\over x^{99}}+{1\over x^{98}}+{1\over x^{97}}+{1\over x^{96}}+{1\over x^{95}}+{1\over x^{94}}+x $$ is

P = 12xy – 10y² – 18x²,

Q = 14x² + 12y² + 9xy, and

R = 5y² – x² + xy

then (P + Q) – R =

If x² + y² + z² = 2 (x + z – 1), then the value of : x³ + y³ + z³ = ?

If α, β are the roots of 6x²+13x+7=0, then the equation whose roots are α², β² is:

If a = 34, b = c = 33, then the value of a³ + b³ + c³ – 3abc is