rationalise the denominator of unroot 5/2-root 7
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Answered by
0
Answer:
5/(2-√7)
=5/(2-√7) x (2+√7)/(2+√7)
=5(2+√7)/4-7
=(10+5√7)/-3
=(-10-5√7)/3
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Answered by
1
Answer:
5/(2-√7)
=5/(2-√7) x (2+√7)/(2+√7)
=5(2+√7)/4-7
=(10+5√7)/-3
=(-10-5√7)/3
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