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Standard XII

Mathematics

Properties of Determinants

A C B D C ...

Question

_ A C _ B D _ C D C D
2 _ 4 1 _ 1 4 _ _ _ _
r s _ q r _ p ? ? ? ?

p q p q

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p r p r

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r q r q

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r s r s

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Solution

The correct option is A p q p q
Clearly, 4 corresponds to C and p corresponds to 4. So, p corresponds to C.
1 corresponds to D and q corresponds to 1. So, q corresponds to 1.
Thus, CDCD corresponds to p, q, p, q.
Hence, option (A) is the correct answer.

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_ A C _ B D _ C D C D2 _ 4 1 _ 1 4 _ _ _ _ r s _ q r _ p ? ? ? ?

The correct option is A p q p qClearly, 4 corresponds to C and p corresponds to 4. So, p corresponds to C.1 corresponds to D and q corresponds to 1. So, q corresponds to 1.Thus, CDCD corresponds to p, q, p, q.Hence, option (A) is the correct answer.

_ A C _ B D _ C D C D
2 _ 4 1 _ 1 4 _ _ _ _
r s _ q r _ p ? ? ? ?

The correct option is A p q p q
Clearly, 4 corresponds to C and p corresponds to 4. So, p corresponds to C.
1 corresponds to D and q corresponds to 1. So, q corresponds to 1.
Thus, CDCD corresponds to p, q, p, q.
Hence, option (A) is the correct answer.