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Calculating the missing side-length of a triangle using the cosine rule.

Given two angles and a side-length of a triangle, use the sine rule to calculate an unknown side-length.

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Simple truss with a zero-force member

This is a practice Mini Test 1 for Accounting

Retrieval practivce after pre-class activities

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Find a regression equation.

Simple exercise in collecting terms in different powers of \(x\)

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An A-frame structure supporting a load at the top.  Simple because both legs are two force bodies.

This just an equilibrium of a particle problem, but posed in context of a joint as a warm-up for the method of joints.

Advice is brief.

Es werden die grundlegenden Ableitungsregeln geübt.

Die Reihenfolge der Summanden ist auch randomisiert.

Übung der Ableitungsregeln

Es werden grundlegenden Ableitungsregeln geübt.

Die Reihenfolge der Summanden ist auch randomisiert.

Express $\displaystyle \frac{a}{x + b} \pm  \frac{c}{x + d}$ as an algebraic single fraction over a common denominator. 

Solving a differential equation of the form $\frac{dy}{dx}=\frac{ax^n}{y}$ using separation of variables.

Solving a differential equation of the form $\frac{dy}{dx}=axy^2$ using separation of variables.

Solving a differential equation of the form $\frac{dy}{dx}=axy$ using separation of variables.

A chi-squared test for proportions. Would be  a difficult A-level question or a fairly simple university level. 

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