rationalise the denominator of 12/root15-root7
Answers
Answered by
1
Answer:
12/ root15 - root7× root15+root7/root15 + root 7
12× root 15 - root 7 / 15-7
12× root 15 - root 7 / 8
3(root 15 - root 7)/2
Answered by
1
Answer:
3√15+√7/2
Step-by-step explanation:
12/√15-√7*√15+√7/√15+√7
=12*√15+√7/(√15-√7)^2
=12*√15+√7/15-7
=12*√15+√7/8
=3√15+√7/2
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