Solve left(cot(2*45)right)^2-cot(2*45)=0

$${ \left( \cot ( 2 \times 45 ) \right) }^{ 2 } - \cot ( 2 \times 45 ) =0$$

Verify

Solution Steps

Multiply 2 and 45 to get 90.

$$\left(\cot(90)\right)^{2}-\cot(2\times 45)=0$$

Get the value of \cot(90) from trigonometric values table.

$$0^{2}-\cot(2\times 45)=0$$

Calculate 0 to the power of 2 and get 0.

$$0-\cot(2\times 45)=0$$

Multiply 2 and 45 to get 90.

$$0-\cot(90)=0$$

Get the value of \cot(90) from trigonometric values table.

$$0-0=0$$

Subtracting 0 from itself leaves 0.

$$0=0$$

Compare 0 and 0.

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