 Hello, hello Just hello testing testing Hello, yeah, you just check if I'm audible So even if you are not having the chat box we can actually you can actually type in your response in the chat box Of your whatsapp just check if I'm audible and you can see the screen Can you see the screen as well? Yeah, it's okay. There's no chat box I can understand that because there's some technical issue with YouTube Because there are other live sessions as well, which are getting affected so You can chat on the on the group itself Actually it becomes unavailable But I can exist it from my phone at least So let's start solving the questions. If you can see the screen I have given the first question If it becomes unavailable, let me know because if you can if you can see the screen and You can hear me. You can start solving the questions. Let's not waste time on it All right first of this one because we have already wasted some time with the technical issues of what of YouTube Let me solve this question for you So we have been given if cos alpha by cos a oh The video has gone unavailable my test