Question

Prove That tan(45 + x)/tan(45 - x) = (1+ tan x / 1- tan x)^2​

Answer 1

Answer:

Advantages of using credit cards

There are many advantages when using a credit card as a method for purchasing goods. It does not necessarily mean that you do not have funds to cover those purchases. The use of a credit card, instead of cash or personal funds, offers the following advantages:

Building credit history.  

A quick source of funds in an “absolute” emergency

No accrued interest if bill is paid on time and in full each month

Zero liability as consumers is not responsible for fraudulent charges when reported promptly.

Consumer protection ($50.00) if fraudulent charges are reported promptly in case the card is stolen or lost.

Step-by-step explanation:

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