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What is ^2 ( ⁻¹ 2 )+ ^2 ( cosec ⁻¹ 3 ) equal to?

Options

  1. A11 12
  2. B11 24
  3. C7 24
  4. D1 24

Correct answer

B. 11 24

Step-by-step solution

aligned & Suppose I = ^2 ( ⁻¹ 2 )+ ^2 ( cosec ⁻¹ 3 ) & I = ^2 (60^ )+ ^2+ ( ⁻¹ 9-1 ) & cosec ⁻¹ t = ⁻¹ t ^2-1 & I = 1 3 + ^2 ( ⁻¹ 1 8 )= 1 3 + 1 8 = 11 24 aligned

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