rationalise the denominator root5 +root3 /root5 -root3
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4+root 15
Step-by-step explanation:
=( root 5 + root 3)(root 5 + root 3)
__________________________
(root 5 - root 3)( root 5 + root 3)
=(root 5 + root 3)^2
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(root 5)^2 - (root 3)^2
= 5+3+2root15
____________
5-3
= 8+2root15
___________
2
= 4 + root 15
hope this helps
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