How to understand which formula we have to apply?

Who are you

•  Show that 
• Sin-¹(2x√1-√2x)=2cos-¹x,1/√2<X<1
  

What is the maximum number. Of factor of prime number.

First predent in India

Why the negative sign of root3 moves from LHS to RHS?

y
(xy + x2y2)dx + x(
xy − x2y2)dy = 0

How to pass an entry in tally receipt and payment voucher when sundry creditor & sundry debtor are same ?

How to solve this question?? 

Please kindly send me the answer step by step as soon as possible 

 

It's a determinant problem

A number 'n' when divided by 14 gives the remainder 5. What is the remainder when the same number is divided by 7?

Find the value of cot(tan inverse a cot inverse
a)

Dear All,

My father age 63 year not having medical insurance. As per Finance act 2018 can he be eligibe to claim medical expenditure up to Rs 50000 under section 80D? Is it mandatory that expenditure to be paid by card/ online transfer? If he is paying by cash, can he eligible to claim that amount i.e, upto Rs 50000? Whether amt
of Rs 5000 towards preventive health checkup is included in Rs 50000 or excluded?

Thanks and Regard
Preeti 

• Show that :- Cos(2tan inverse1/7)= sin(4tan inverse1/3)

Inverse trigonometry functions

Dear sir, 
 Please provide accounting system of a school or college with gst.

My purchase invoice date is 30/Mar and I received goods and invoice on 5/Apr . On which date should I account my purchase.  
 
Please do the needful 
Thank you

why person in examples even didn't get changed??

wouldn't the answer be :
mother said that she had not received any phone calls from him .

Decimal expansion of 11/320

 

how can make provisional Balance sheet & P&L