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

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


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


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


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


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


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


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


Any trigonometric expression, such as sin(x) , 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, cos(x)^2 means [cos(x)]*[cos(x)] and must be entered cos(x)^2 .