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MHT CET20226 Aug 2022Morning ShiftMathematicsInverse Trigonometric FunctionsActual

If ⁻¹ a+ ⁻¹ b+ ⁻¹ c= , then which of the following is true?

Options

  1. Aa b c=1
  2. Ba+b-c= a b c
  3. Ca+b+c=a b c
  4. Da+b+c=1

Correct answer

C. a+b+c=a b c

Step-by-step solution

aligned & ⁻¹ a+ ⁻¹ b+ ⁻¹ c= & ⁻¹ ( a+b+c-a b c 1-a b-b c-c a )= & a+b+c-a b c 1-a b-b c-c a = =0 & a+b+c=a b c aligned

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