if a and b are two rational numbers than find the value of a and b in the following equation √5+√3/√5-√3 =a+b√15
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If a and b are rational numbers, find the value of a and b in each of the following equations.
2
5
−3
3
5
+
3
=a−b
15
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ANSWER
2
5
−3
3
5
+
3
=a−b
15
(2
5
−3
3
)(2
5
+3
3
)
(
5
+
3
)(2
5
+3
3
)
=a+b
15
(2
15
)
2
−(3
3
)
2
2×5+3
15
+2
15
+9
=a−b
15
20−27
19+5
15
=a−b
15
7
−19
7
−5
15
=a−b
15
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