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6 results for “powers”

Formulae (6)

n^2 = n\times n

A number multiplied by itself.

n^3 = n\times n\times n

A number multiplied by itself three times.

a^m \cdot a^n = a^{m+n}

Multiplying powers with the same base adds the exponents.

\frac{a^m}{a^n} = a^{m-n}

Dividing powers with the same base subtracts exponents.

\frac{a^m}{a^n} = a^{m-n}

Divide powers with the same base by subtracting exponents.

(\cos\theta + i\sin\theta)^n = \cos n\theta + i\sin n\theta

Powers of complex numbers in trig form.