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If p=sqrt((1-sinx)/(1+sinx)),q=(1-sinx)/...

If `p=sqrt((1-sinx)/(1+sinx)),q=(1-sinx)/(cosx),r=(cosx)/(1+sinx)` then which of the following is/are correct
1. `p=q=r`
2. `p^2=qr`
Select the correct answer using the code given below.

A

1 only

B

2 only

C

Both 1 and 2

D

Niether 1 nor 2

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