if p/√10+√14+√15+√21=√10-√14-√15+√21
Answers
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0
Answer:
(C) Given,
10
+
14
+
15
+
21
l
=
k
10
−
14
−
15
−
21
⇒lk=[(
10
+
21
)+(
14
+
15
)]
=[(
10
+
21
)−(
14
+
15
)]
=(
21
+
10
)
2
−(
15
+
14
)
2
=(31+2
210
)−(29+2
210
)
=31+2
210
−29−2
210
=2
⇒l=
k
2
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