Ratonalize the denominator of 7√2-3√5/3√7-5√3
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Answer:
7√2-3√5 × 3√7+5√3
3√7-5√3 × 3√7+5√3
= (7√2-3√5)(3√7+5√7)
63-75
= 294+490-315-525
-12
= -56
-12
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