Many of these questions require algebraic expressions as answers or exact answers, and must be entered using calculator syntax. For example:

The expression
must be entered as
**2*x**
. The
*****
is
**REQUIRED**
to indicate multiplication.

The expression
must be entered as
**x^2**
.

The expression
must be entered as
**(x+2)/(x+1)**
.

The expression
must be entered as
**sqrt(x)**
or
**x^(1/2)**
.

The number
must be entered as
**Pi**
. For example,
must be entered as
**Pi*r^2**
.

The answer is case sensitive so
**x^2**
is not the same as
**X^2**
.

The expression
must be entered as
**logb(n,x)**
. For example,
must be entered as
**logb(10,17)**
.

Any trigonometric expression, such as , must have parentheses around the argument.

For any trigonometric expression that is raised to a power, the power is written after the argument of the function. For example,
means
and must be entered
**cos(x)^2**
.