d/dx(2xcos3x)
2x+3
cos2 theta-cos10 theta
xy dy/dx = y^2+1 / x^2+1
4n>3n+4
54 - (45.3 + 46.8) + 33.8
Solve for determinant Dk=∣[1,2k,2k−1],[n,n2+n+2,n2],[n,n2+n,n2+n+2]∣D_k=|[1,2k,2k-1],[n,n^2+n+2,n^2],[n,n^2+n,n^2+n+2]|Dk=∣[1,2k,2k−1],[n,n2+n+2,n2],[n,n2+n,n2+n+2]∣
6𝑥+1
3
−
11𝑥−2
9
1 4
(5𝑥 − 2) = 5
6
(6𝑥 + 1)
prove that 1<r<1
f (x) = (sin(2x) + x**2)**cos(x)
