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1. 1-tan2A1+tan2A

  • A. 1
  • B. 1
  • C. 1
  • D. 1

Answer: Option C

Explanation:

1 - tan2A / 1 + tan2A

= 1 - ( tan450)2/ 1 + ( tan450)2

= 1 - 1 /1 + 1

= 0/2

= 0

 

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