If x = 3 + 22 and root x -1/x is equal to:
A. 1
B. 2
C. 22
D. 33
Answer:B
If x = 3 + 22 and root x -1/x is equal to:
A. 1 B. 2 C. 22 D. 33
Explanation: 3 + ROOT 2) = x+1- 2 3 + ROOT 2) + +1- 2 = (3 + ROOT 2) 3 - ROOT2) = (3 + 22) + +1x(3 - ROOT2)- 2,(3 + ROOT2) (3 - ROOT2) (3 - 22) -2 equals four.ROOT x -1/ROOT X= 2