What is (10-i)-(-11-i) ?

The solution to (10-i)-(-11-i) is 21

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simplify (10-i)-(-11-i)

simplify

(10 - i) - (- 11 - i)

21

Solution steps

(10 - i) - (- 11 - i)

Group the real part and the imaginary part of the complex number

(a + bi) - (c + d i) = (a - c) + (b - d) i

= (10 - (- 11)) + (- 1 - (- 1)) i

Simplify

(10 - (- 11)) + (- 1 - (- 1)) i : 21

= 21

\frac{7 x}{x - 4} + \frac{x + 7}{x - 6}

(x + y + z) (x - y - z)

- \frac{3}{- 2}

(a + x) (a - x)

y^{'} (x) + (\frac{4}{x}) y - (x^{3}) (y^{2})