please tell the answer fast
Answers
Answer:
Correct option is
C
±24
2
a+
a
1
=6
Squaring both sides,
=(a+
a
1
)
2
=6
2
=a
2
+(
a
1
)
2
+2(a)(
a
1
)=36
=a
2
+
a
2
1
+2=36
=a
2
+
a
2
1
=34
Now,
(a−
a
1
)
2
=a
2
+
a
2
1
−2(a)(
a
1
)
=34−2
=32
=>a−
a
1
=±
32
=±4
2
Now,
(a
2
−
a
2
1
)=(a+
a
1
)(a−
a
1
)
=6(±4
2
)
=±24
2
Step-by-step explanation:
hope it helps
Step-by-step explanation:
a
1
=6
Squaring both sides,
=(a+
a
1
)
2
=6
2
=a
2
+(
a
1
)
2
+2(a)(
a
1
)=36
=a
2
+
a
2
1
+2=36
=a
2
+
a
2
1
=34
Now,
(a−
a
1
)
2
=a
2
+
a
2
1
−2(a)(
a
1
)
=34−2
=32
=>a−
a
1
=±
32
=±4
2
Now,
(a
2
−
a
2
1
)=(a+
a
1
)(a−
a
1
)
=6(±4
2
)
=±24
2