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Question: Answered & Verified by Expert
If A=3-27-5, then the value of -3A2019+A2020 is equal to
MathematicsDeterminantsJEE Main
Options:
  • A -14
  • B 28
  • C 14
  • D 2201914
Solution:
2363 Upvotes Verified Answer
The correct answer is: -14
A=-15+14=-1
A2019-3Ι+A=A2019A-3Ι
=-10-27-8=-114=-14

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