Question
If x - 1/x = 9, then the value of x² + 1/ x²
is:Solution
(x - 1/x) = 9 Squaring both the sides we get, (x2Â - 1/x2) = 81 + 2 (x2Â - 1/x2) = 83
More Simplification Questions
- 44.83% of 799.88 + (84.12 X 14.98 ÷ 62.87) = ?² + 55.65
15.232 + 19.98% of 649.99 = ? × 4.99
20.22% of (61.9 × 5.01) + 69.97 =?Â
14.232 + 19.98% of 629.99 = ? × 6.99
{(23.65 × 35.12) ÷ 6.97} + 179.86 = ? × 14.76
(1120.45 ÷ 15.89) × 11.34 = ? × 4.78
What approximate value will come in place of the question mark (?) in the following question? (Note: You are not expected to calculate the exact value.)...
999.99 + 99.99 + 99= ?
(33.95)2 – (25.004)2 + (18.0099)2 – (9.07)2 = ? - (14.990)2
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