If A =

[cos²θ  2sinθcosθ  0
 0    cos²θ    2sinθcosθ
 0    0      cos²θ],

then which of the following statements is/are correct ?

1. A^-1 = adjA

2.A is a skew-symmetric matrix

3.A^-1= A^Т

Select the correct answer using the code given below:

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