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1446

Q: The Value of  logtan10+logtan20+⋯⋯+logtan890 is

  • 1
    -1
  • 2
    0
  • 3
    1/2
  • 4
    1
  • Show Answer
  • Workspace

Answer : 2. "0"
Explanation :

Answer: B) 0 Explanation: = log tan10+log tan890 + log tan20+ log tan880+⋯⋯+log tan450     = log [tan10 × tan890] + log [tan20 × tan880 ] +⋯⋯+log1     ∵ tan(90-θ)=cotθ and tan 450=1     = log 1 + log 1 +.....+log 1    = 0.

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