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MHT CET202120 Sep 2021Evening ShiftMathematicsInverse Trigonometric FunctionsActual

⁻¹ ( 4 5 )+ ⁻¹ ( 12 13 )=

Options

  1. A⁻¹ ( 24 25 )
  2. B⁻¹ ( 33 65 )
  3. C⁻¹ ( 5 13 )
  4. D⁻¹ ( 3 5 )

Correct answer

B. ⁻¹ ( 33 65 )

Step-by-step solution

aligned & ⁻¹ ( 4 5 )+ ⁻¹ ( 12 13 ) & = ⁻¹ ( 3 4 )+ ⁻¹ ( 5 12 ) & = ⁻¹ [ ( 3 4 )+ ( 5 12 ) 1- ( 3 12 ) ( 5 12 ) ] & = ⁻¹ ( 36+20 48-15 )= ⁻¹ ( 56 13 )= ⁻¹ ( 33 65 ) aligned

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