" If "y=(sin^(4)x-cos^(4)x+3ln^(2)x cos^(2)x)/(sin^(4)x+cos^(4)x+sin^(2)x rec^(2)x),x in(0,(pi)/(2))," then "

If y=(sin^(4)x-cos^(4)x+sin^(2) x cos^(2)x)/(sin^(4) x+ cos^(4)x + sin^(2) x cos^(2)x), x in (0, pi/2) , then

If y=(sin^(4)x-cos^(4)x+sin^(2) x cos^(2)x)/(sin^(4) x+ cos^(4)x + sin^(2) x cos^(2)x), x in (0, pi/2) , then

If y=(sin^(4)x-cos^(4)x+sin^(2) x cos^(2)x)/(sin^(4) x+ cos^(4)x + sin^(2) x cos^(2)x), x in (0, pi/2) , then

If y= ( sin^(4) x - cos^(4) x + sin^(2) x cos^(2) x )/( sin^(4) x + cos^(4) x + sin^(2) x cos^(2) x) , x in ( 0, (pi)/(2) ) , then

If sin^(2)4x+cos^(2)x=2sin4x cos^(2)x, then

If sin^(4)2x+cos^(4)2x=sin2x*cos2x then x=

Let Delta(x)=|(3+2sin^(4)x,2cos^(4)x,sin^(2)2x),(2sin^(4)x,3+2cos^(4)x,sin^(2)2x),(2sin^(4)x,2cos^(4)x,3+sin^(2)2x)| then int_(-pi//2)^(pi//2)x Delta(x)dx equals