Trigonometry Examples

$(3 i - 2 j) - (- 7 i + 7 j)$

Step 1

Simplify each term.

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Step 1.1

Apply the distributive property.

$3 i - 2 j - (- 7 i) - (7 j)$

Step 1.2

Multiply $- 7$ by $- 1$ .

$3 i - 2 j + 7 i - (7 j)$

Step 1.3

Multiply $7$ by $- 1$ .

$3 i - 2 j + 7 i - 7 j$

$3 i - 2 j + 7 i - 7 j$

Step 2

Simplify by adding terms.

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Step 2.1

Add $3 i$ and $7 i$ .

$- 2 j + 10 i - 7 j$

Step 2.2

Subtract $7 j$ from $- 2 j$ .

$- 9 j + 10 i$

$- 9 j + 10 i$

$[\begin{array}{c} x^{2} & \frac{1}{2} \\ \sqrt{π} & \int x d x \end{array}]$