If x is equals to 1 upon 3 minus root 5 then the value of under root x + 1 upon under root x is
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Answered by
13
Answer:
√x + 1/√x = √(23 - 3√5) / 2 = 2.02
Step-by-step explanation:
If x is equals to 1 upon 3 minus root 5 then the value of under root x + 1 upon under root x is
x = 1/(3 - √5)
Let say
y = √x + 1/√x
Squaring both sides
y² = x + 1/x + 2
=> y² = 1/(3 - √5) + 3-√5 + 2
=>y² = (3+√5)/(3 - √5)(3 + √5) + (5 - √5)
=> y² = (3 + √5)/(9 - 5) + (5 - √5)
=> y² = (3 + √5)/4 + (5 - √5)
=> y² = (3 + √5 + 20 - 4√5 )/4
=> y² = ( 23 - 3√5)/4
=> y = √(23 - 3√5) / 2
=> √x + 1/√x = √(23 - 3√5) / 2
Answered by
7
Answer:
same as above .........
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