Question
Solution
If x2n +1/x2n =k Let xn -1/xn =y (xn +1/xn)2 = x2n +1/x2n +2 (xn +1/xn)2 =k+2                Let xn +1/xn =z z2 = k+2 … (1) Using the identity for the square of a difference: y² = z2-4 Since    z2 =k+2: y² = (k+2)-4 y² = k -2 Therefore- y = √ k-2 xn -1/xn =√ (k-2)
 (108.999)² - (102.001)²=?
999.99 + 99.99 + 99 = ?
1199.98 ÷ 40.48 × 20.12 = ? × 3.16
?% of (144.31 ÷ 17.97 × 60.011) = 239.98
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.)...
From a point on the ground, the angle of elevation to the top of a tree is 30 degrees. If you walk 20 feet closer to the tree, the angle of elevation be...
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.)...
(16.16 ×  34.98) + 14.15% of 549.99 = ? + 124.34
√1024.21 × √624.89 ÷ 4.98 + 11.99 × 4.01 = ?
- 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.)
