Given that x = 1 / 2 (5 ^ 1 / N-5 ^ - 1 / N), n belongs to N, find the value of (x + radical 1 + x ^ 2) ^ n

Given that x = 1 / 2 (5 ^ 1 / N-5 ^ - 1 / N), n belongs to N, find the value of (x + radical 1 + x ^ 2) ^ n

X & sup2; = 1 / 4 [5 ^ (2 / N) - 2 + 5 ^ (- 2 / N)] 1 + X & sup2; = 1 + 1 / 4 [5 ^ (2 / N) - 2 + 5 ^ (- 2 / N)] = 1 / 4 [4 + 5 ^ (2 / N) - 2 + 5 ^ (- 2 / N)]

Mathematics in grade one of senior high school
1. Given that a straight line passes through a point (- 2,2) and forms a triangle of unit area with two coordinate axes, the equation of the straight line is solved
2. The line L1: ax + (1-A) y = 3 and L2: (A-1) x + (2a + 3) y = 2 are perpendicular to each other, and the value of a is obtained
3. Given that the equation of line L is 3x + 4y-12 = 0, find the equation of line m such that:
(1) M is parallel to L and passes through (- 1,3);
(2) M is perpendicular to L, and the area of triangle formed by M and two axes is 4
Please write the process, thank you

1. Let y = K (x + 2) + 2 (sketch)
K> 0:
When x = 0, y = 2 * k + 2 > 0
When y = 0, x = - 2 / K-20
K

Finding the equation of straight line
The linear equation of 2x + 3y-6 = 0 with respect to point a (2, - 3) symmetry

A good way to teach you: just change x to 4 - x, y to - 6 - y and return to the original equation
2x+3y+16=0