What is (11-12i)-(10+9i) ?

The solution to (11-12i)-(10+9i) is 1-21i

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simplify (11-12i)-(10+9i)

simplify

(11 - 12 i) - (10 + 9 i)

1 - 21 i

Solution steps

(11 - 12 i) - (10 + 9 i)

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

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

= (11 - 10) + (- 12 - 9) i

Simplify

(11 - 10) + (- 12 - 9) i : 1 - 21 i

= 1 - 21 i

1 - \frac{x ^{2}}{4}

\frac{3}{1 - 3}

\frac{144}{( - 12 )}

- x^{3} + 2 x^{2}

- 1 \frac{1}{5} + (- \frac{3}{5})