I want to Thank you for teaching in such a easy manner that after watching your vedio I don't have any doubts. Thanks a ton sir.

in third last line, how P(B)P(A') changed to [1-P(B)] in the second last line ?

construct Triangle ABC in which BC=8cm and angle B=30 and AB+AC=12cm

how they differentiated in step 4

solve xe^[y/xy sin[y/x] + x dy/dx sin[y/x]=0, y[1]=0

which head put tally updation expenses

Hi . We paid advance 22,500 for AC repair charges of my company. I booked that expenses into my books of Accounts with out GST. Because I didn't receive bill on that date. After few days I received the bill with GST on total gross 45,000. Then total amount as per invoice is 53,260. With 9 percent cgst ,sgst on 43,400  and 14 percent cgst ,sgst on 1,600. We paid remaining balance amount 30, 760. Now how can I record that entry into my books?

My manager is saying don't enter any reverse entry for that for 22,500( first paid amount). I am not able to understand how can I adjust that GST difference amount in present entry. I am getting the GST difference 4,130 rupees. Please help me on this ASAP. If I add GST difference to remain 22,500 payable amount I am getting more GST amount. And also payable amount increase. Now we close the entry for 30,760 rupees with GST. 

Find the derivative of f(x)=2x-3/4x-5 ;x≠-5/4, By using first principle.