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In this video we solve following questions on first four properties of inverse trigonometry. Q) Find the principal value of sec[cos⁻¹(√3/2)]. Q) Find the value of sin[π/2 - cos⁻¹(1/2). Q) Evaluate sin[ π/2 - sin⁻¹(- 1/2). Q) Evaluate sin[cos⁻¹(- 1/2)]. Q) Prove that cos[sin⁻¹(3/5)] = 4/5. Q) Prove that sin⁻¹(- 1/2) + cos⁻¹(- 1/2) = tan⁻¹(∞). Q) By using principal value, prove that sin⁻¹(- 1/√2) + 2cos⁻¹(- 1/√2) + 3sin⁻¹(-1) = - π/4 examples on inverse trigonometric ratio problems on inverse trigonometric ratio questions on inverse trigonometric ratio inverse trigonometric ratio problems inverse trigonometric functions chapter questions inverse trigonometric ratio questions inverse trigonometric ratio examples inverse trigonometric ratio show that examples questions on inverse trigonometric functions chapter inverse trigonometric functions chapter lecture inverse trigonometry chapter lecture