please solve question number 14th , i mark him as brilliantlist
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Step-by-step explanation:
Answer is 5/2
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sk10247:
its wrong
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√5-1/√5+1 ----(1) √5+1/√5-1----(2)
let rationalize
√5-1/√5+1--------------(1)
√5-1×√5-1/√5+1×√5-1
(√5)^2-1^2/(√5)^2-1^2
5 +1/5+1
6/6
=1
let rationalize
√5+1/√5-1---------------(2)
√5+1×√5+1/√5-1 ×√5 +1
(√5)^2×1^2/(√5)^2 -1
5 +1/5-1
6/4
=1.5
let put the value in question
(1+1.5)
=2.5
let rationalize
√5-1/√5+1--------------(1)
√5-1×√5-1/√5+1×√5-1
(√5)^2-1^2/(√5)^2-1^2
5 +1/5+1
6/6
=1
let rationalize
√5+1/√5-1---------------(2)
√5+1×√5+1/√5-1 ×√5 +1
(√5)^2×1^2/(√5)^2 -1
5 +1/5-1
6/4
=1.5
let put the value in question
(1+1.5)
=2.5
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