" (a) "9x^(2)+6xy+y^(2)

Factorise the following using appropriate identities: (i) 9x^(2)+6xy+y^(2) (ii) (ii) x^(2)-(y^(2))/(100)

Factorise the following using appropriate identities : (i) 9x^(2)+6xy+y^(2) " " (ii) 4y^(2)-4y+1 " " (iii) x^(2)-(y^(2))/(100)

Factorise the following using appropriate identities : (i) 9x^(2)+6xy+y^(2) " " (ii) 4y^(2)-4y+1 " " (iii) x^(2)-(y^(2))/(100)

Show that the equation 9x^(2) - 6xy + y^(2) + 18x - 6y + 8 = 0 represents a pair of lines. Find the acute angle between them.

Factorise completely : x^(2) + 6xy + 9y^(2) + x + 3y

If ((5x-y))/((5x + y)) =3/7, what is the value of ((4x ^(2) + y ^(2) -4 xy ))/( ( 9x ^(2) + 16 y^(2) + 24 xy)) ?

The acute angle between the line represented by 9x^(2)-6xy+y^(2)+18x-6y+8=0 is