" (ii) "x^(3)y^(4)=(x-y)^(7)

Find (dy)/(dx) when : x^(3)y^(4)=(x+y)^(7)

x^(3)y^(4)=(x-y)^(7) Differentiate it and

x^(3)y^(4)=(x+y)^(7) ,find (dy)/(dx)

y = x ^ (3) y ^ (4) = (x + y) ^ (7)

Divide : -14x^(6)y^(3) - 21x^(4)y^(5) + 7x^(5)y^(4) by 7x^(2)y^(2)

Prove that the following lines are concurrent. (i)5x-3y=1 , 2x+3y=23 , 42x+21y=257 (ii) 2x+3y-4=0 , x-5y+7=0 , 6x-17y+24=0

Find the values of x and y. If (i) (x,4)=(-7,y) (ii) (x-3,6)=(4,x+y)

Simplify: (2x+3y)(3x4y)-(7x+3y)(x+2y)

Find the greatest value of x^(3)y^(4) if 2x+3y=7 and x>=0,y>=0 .

Write down the following in the product form: x^3y^4 (ii) 6x^7y (iii) 9x y^2z^2 (iv) 10 a^3b^3c^3