All Tasks

Chain rule arccotan

Applying the chain rule, calculate $\frac{dy}{dx}(1)$ where $y(v)=arccot\left(v^2+v\right)$, and $v(u)=\ln(u^2-3)$, and $u(x)=\dfrac{x+1}{x}$
 
# Functions of one variable

Training
13

Cube tower 1

For each given tower, calculate the number of side faces visible side faces.
 
# Numerical expressions

Modeling
7

term triangle 2

The depicted sequence of matchstick figures is continued. Give the term that can be used to determine the number of matches needed at the step n.
 
# Terms

Modeling
7

term triangle 1

The depicted sequence of matchstick figures is continued. Indicate how many matchsticks are needed for step 4.
 
# Terms

Modeling
7

term square 2

The depicted sequence of matchstick figures is continued. Cross all terms that can be used to determine the number of matches needed at the step n can be determined.
 
# Terms with variables

Reasoning
7

Equations using arccotan

The solution of the equation $2\text{arccot}(x+1)=\dfrac{\pi}{2}$ is:
 
# Functions of one variable

Training
13