See question below and the photo for my comments

Perform the

Question

see question below and the photo for my comments.

Perform theSearch 6:13 AM Fri Jul 5
100%
;
D
D
of /
X Answer = – 2 tax Secx
5.2. 21 w/ help from the website .
S
7 7 sinx
1 – Sinx
I understand
1 , 1 – Sinx
I tsix
up to this point,
Itsnx
1 – Sinx
I – sinx
Itsinx /
but …
I don’t know what I am doing here
7 – Siny
– 1+ sinx
7 – Sin’x
I tenx – saf – sin x
Is this right ? I
1 – sinv – ( 1 + sin x ) – 1 – Sin x – 1 – sinx
1 – sin 2 x
7 – sin 2 x
Can you show step, by step in detail? I
am
Sure it is something small I am missing.!

Trigonometry