![Prove that the equation x^3-2x+1=0 is satisfied by putting x either of the values sqrt{2}sin 45^o, 2sin 18^o, and 2sin 234^o. Prove that the equation x^3-2x+1=0 is satisfied by putting x either of the values sqrt{2}sin 45^o, 2sin 18^o, and 2sin 234^o.](https://haygot.s3.amazonaws.com/questions/1715544_1730575_ans_7ae022f5833242759b561e2e4c67b155.jpg)
Prove that the equation x^3-2x+1=0 is satisfied by putting x either of the values sqrt{2}sin 45^o, 2sin 18^o, and 2sin 234^o.
![Factorise: (i) x^3 - 2x^2 - x + 2 (ii) x^3 - 3x^2 - 9x - 5 (iii) x^3 + 13x^2 + 32x + 20 (iv) 2y^3 + y^2 - 2y - 1 Factorise: (i) x^3 - 2x^2 - x + 2 (ii) x^3 - 3x^2 - 9x - 5 (iii) x^3 + 13x^2 + 32x + 20 (iv) 2y^3 + y^2 - 2y - 1](https://d138zd1ktt9iqe.cloudfront.net/media/seo_landing_files/output-onlinepngtools-1568203663.png)
Factorise: (i) x^3 - 2x^2 - x + 2 (ii) x^3 - 3x^2 - 9x - 5 (iii) x^3 + 13x^2 + 32x + 20 (iv) 2y^3 + y^2 - 2y - 1
![The common roots of the equation `x^(3) + 2x^(2) + 2x + 1 = 0 and 1+ x^(2008)+ x^(2003) = 0` - YouTube The common roots of the equation `x^(3) + 2x^(2) + 2x + 1 = 0 and 1+ x^(2008)+ x^(2003) = 0` - YouTube](https://i.ytimg.com/vi/XoesdtEllfo/maxresdefault.jpg)
The common roots of the equation `x^(3) + 2x^(2) + 2x + 1 = 0 and 1+ x^(2008)+ x^(2003) = 0` - YouTube
![Factorise: (i) x^3 - 2x^2 - x + 2 (ii) x^3 - 3x^2 - 9x - 5 (iii) x^3 + 13x^2 + 32x + 20 (iv) 2y^3 + y^2 - 2y - 1 Factorise: (i) x^3 - 2x^2 - x + 2 (ii) x^3 - 3x^2 - 9x - 5 (iii) x^3 + 13x^2 + 32x + 20 (iv) 2y^3 + y^2 - 2y - 1](https://d138zd1ktt9iqe.cloudfront.net/media/seo_landing_files/3-1568203751.png)
Factorise: (i) x^3 - 2x^2 - x + 2 (ii) x^3 - 3x^2 - 9x - 5 (iii) x^3 + 13x^2 + 32x + 20 (iv) 2y^3 + y^2 - 2y - 1
![If f is defined by f(x)= x^3 +2x^2 + x, how do you find the value of x when the average rate of change of f on the interval x=-1 to x = If f is defined by f(x)= x^3 +2x^2 + x, how do you find the value of x when the average rate of change of f on the interval x=-1 to x =](https://useruploads.socratic.org/sB8Q2UFSM266wRVtIqG2_mat1.jpg)