Determine a and b,if (√7+√5)/(√7-√5)/(√7-√5)/(√7+√5)=a+√35b.
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Answered by
10
hi there
firstly (take LCM)
(√7+√5)(√7+√5)+(√7-√5)(√7-√5)
___________________________
(√7+√5) (√7-√5)
7+√35+√35+5 +(7-√35-√35+5)
_________________________
7-5
14+5+2√3-2√3
_____________ =a+√35b
2
19/2=a+√35b
so a =19/2
b = 0
if it help you mark it as branlist ans
firstly (take LCM)
(√7+√5)(√7+√5)+(√7-√5)(√7-√5)
___________________________
(√7+√5) (√7-√5)
7+√35+√35+5 +(7-√35-√35+5)
_________________________
7-5
14+5+2√3-2√3
_____________ =a+√35b
2
19/2=a+√35b
so a =19/2
b = 0
if it help you mark it as branlist ans
Answered by
1
Answer:
Step-by-step explanation:
Rationalize
You will get
(6+root 25 )(6+ root35)
Solve bracket
You will get 71+12 root 35
Comparing with a +b root 35
You will get a=71 and b=12
HOPE IT WILL HELP U
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