You can only unlock the chapter using a special code that we will send you via the Viber app. Receiving a message is free of charge and with no obligations.
My phone number:
Get a code
In compliance with the law, persons under the age of 15 can enter their phone number only in the presence of a parent or guardian.
4-character (Viber) code:
Check the received code
The page will be refreshed automatically in a few seconds.
To ensure the proper functioning of the website, OpenProf uses cookies that do not store personal data. By continuing to use the website, you agree to cookies. Tell me more »
where x is in the fourth quadrant. Calculate the values of the following in surd form:
and 
find:
is an acute angle and 
. Calculate 
.
. Determine the number a so that 
will be the solution of the equation and find all the solutions of the equation.
. The value of the expression 
is the same as the value of the expression 
for every 
x \in \mathbb{R}#2# is the value of this expression equal to 1?
.
given that 
and 
.
