can you plz tell this question
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1) 1/ root 7 = root 7/ (root7)(root7)
= (root 7) / 7
2) 1 / root7 - root6 = root 7 + root 6 / (root7 - root6)(root 7+root6)
= root 7 + root 6 / 7-6
= root7 + root6
3) 1/root5 + root 2 = root 5 - root 2 / (root 5- root 2)(root 5+root2)
= root 5 - root 2 / 5-2 = (root5 - root 2) / 3
4) 1 / root7 - 2 = root 7 + 2 / (root7-2)(root7+2)
= root 7 + 2 / 7 - 4 = (root7 + 2) / 3
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