root11+root7/root11+root7=x-y root77
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Answered by
1
Step-by-step explanation:
=
11
+
7
11
−
7
×
11
−
7
11
−
7
=
(
11
+
7
)(
11
−
7
)
(
11
−
7
)
2
=
(
11
)
2
−(
7
)
2
(
11
)
2
+(
7
)
2
−2(
11
)(
7
)
=
11−7
11+7−2
77
=
4
18−2
77
=
4
18
−
4
2
77
=
2
9
−
2
1
77
Now,
2
9
−
2
1
77
=a−b
77
⇒a=
2
9
,b=
2
1
a+b=
2
9
+
2
1
=
2
10
=5
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