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Let A=[{:(costheta,sintheta),(-sintheta,...

Let `A=[{:(costheta,sintheta),(-sintheta,costheta):}]`, then |2A| is equal to

A

`4 cos 2 theta`

B

`1`

C

`2`

D

`4`

Text Solution

Verified by Experts

The correct Answer is:
C
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