`1^2-2^2+3^2-4^2` is equal to

2/3-1/4 is equal to

The value of the determinant =1^2 2^2 3^2 4^2 2^2 3^2 4^25^2 3^2 4^25^2 6^2 4^2 5^2 6^2 7^2 is equal to 1 b. 0 c. 2 d. 3

2^(1/2)*4^(3/4) is equal to

2. | [1 ,1 ,1 ],[4 ,3 ,2], [4^(2) ,3^(2), 2^(2)] | is equal to

The sum of the series 1+(1+2)/(2!)+(1+2+2^(2))/(3!)+(1+2+2^(2)+2^(3))/(4!)+ is equal to

If x=2,y=1 then x^(4)+2x^(3)y-2xy^(3)-y^(4) is equal to

If A=[(1,2,2),(2,1,2),(2,2,1)] then A^(2)-4A is equal to