Question
If for non-zero x, x² - 4x - 1 = 0, what is the value of x² + 1/x²?
More Algebra Questions
- If p = 20 - q - r and pq + r(p + q) = 154, then find the value of (p² + q² + r²).
- If (x - y) = 4, then find the value of (x³ - y³ - 12xy).
- Consider a function f(x) = x4 + x3 + x2 + x + 1, where x is a positive integer greater than 1. What will be the remainder if f(x5) is divided by f(x) ?
- Question 4
- `sqrt(sqrt(17+sqrt(17+sqrt(17)) ... prop)` = ?
- If √b + (1/√b) = 8, then find the value of b + (1/b).
- If p = 28 - q - r and pq + r(q + p) = 182, then find the value of (p² + q² + r²).
- Question 8
- Question 9
- Find the value of 3/4 cot² 30° + cos² 30°-3cosec²60° + tan² 60°.
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