Question

3
Illustration-27 (Calculation of transaction value and IGST Payable)
Compute the Transaction value of taxable goods and IGST payable from the
following information:
1,94,400
10,800
16,200
Wholesale price of a product sold to Pune from a dealer in
Nagpur (including GST 12%)
Price is exclusive of the following:
Secondary packing cost
Cost of special secondary packing
Cost of durable and returnable packing
Freight
Insurance on freight
Trade discount
8,100
6,750
1,350
20,000​

Answer 1

I don't know why I didn't understand this

can you solve this questions for me- find pricipal value of cot^-1⟨cot⟨-9π/4⟩⟩