Question

what is the answer???
pls urgently​

Answer 1

1). 1

2). -1

3). pie/2

4). 0

Thanks Answer Please

Answer 2

Step-by-step explanation:

1) Coefficient of- x² is 1, and of x is 1

2) Coefficient of x² is -1, and x³ is 1

3) Coefficient of x² is π/2, and x is 1

4) Coefficient of x is √2