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nth Term of A.P

lf Tr A=8, ...

Question

lf Tr $(A) = 8$ , Tr( $B$ ) $= 6,$ Tr ( $A - 2 B$ ) $=$

- 4

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Solution

The correct option is A $- 4$
Given, $T r (A) = 8, T r (B) = 6$
Now, $T r (A - 2 B) = T r (A) - 2 T r (B) = - 4$

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