Evaluate the following: ` |[1,1,1],[1,1+x,1],[1,1,1+y]| `

Evaluate the following: |[1,x,y],[1, x+y, y],[1, x, x+y]|

Evaluate the following: |[1,x,y],[1, x+y, y],[1, x, x+y]|

Evaluate the following : [[x,1,-1],[2,y,1],[3,-1,z]]

Find the value of |[1,1,1],[1,1+x,1],[1,1,1+y]|

Find the value of |[1,1,1],[1,1-x,1],[1,1,1+y]| .

If [[1,1,1],[1,1+x,1],[1,1,1+y]]=0 what are x and y?

Prove that: |(1, 1, 1),( 1, 1+x,1) ,(1, 1, 1+y)|=x y .

Find the value of the following: tan [1/2[sin^(-1) ((2x)/(1+x^2))+cos^(-1) ((1-y^2)/(1+y^2))]], |x| 0 and x y < 1 .

Find the value of the following. x + y when x = 1 and y = -1

Find the value of the following: tan1/2[sin^-1(2x/(1+x^2)) + cos^-1(1-y^2)/(1+y^2)], |x| 0 ਅਤੇ xy<1