Assertion (A): If ∠A = 30°, the value of tan^2 2A - sec^2 2A is 1. Reason (R): tan^2 2A - sec^2 2A = tan^2 60° - sec^2 60° = (√3)^2 - (2)^2 = -1 1. A is true, R is false. 2. A is false, R is true. 3. Both A and R are true. 4. Both A and R are false.