HOW TO RATIONALISE A DENOMINATOR
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2
Ex:
1/root 7 ×root 7/ root 7= root 7/ 7
1/ root 7-root6 × root 7 +root6 /root 7+root6
= root 7+root 6/ (root 7)^2 - (root 6)^2
= root7 +root 6 / 7-6
= root 7+ root 6
U basically just have to multiply the fraction by its additive inverse
1/root 7 ×root 7/ root 7= root 7/ 7
1/ root 7-root6 × root 7 +root6 /root 7+root6
= root 7+root 6/ (root 7)^2 - (root 6)^2
= root7 +root 6 / 7-6
= root 7+ root 6
U basically just have to multiply the fraction by its additive inverse
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0
Rationalizing the denominator makes the least rational value
For example if it is taken as 1/root2 the Rationalizing denominator is root2 . In the same way if 1/2root8 the Rationalizing denominator is root2
For example if it is taken as 1/root2 the Rationalizing denominator is root2 . In the same way if 1/2root8 the Rationalizing denominator is root2
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