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Popular >

expand (1+i)^{10}

Solution

expand

(1 + i)^{10}

Solution

32 i

Solution steps

(1 + i)^{10}

Apply binomial theorem:

(a + b)^{n} = i = 0 \sum n (i n) a^{(n - i)} b^{i}

a = 1, b = i

= i = 0 \sum 10 (i 10) \cdot 1^{(10 - i)} i^{i}

Expand summation

= \frac{10 !}{0 ! ( 10 - 0 ) !} \cdot 1^{10} i^{0} + \frac{10 !}{1 ! ( 10 - 1 ) !} \cdot 1^{9} i^{1} + \frac{10 !}{2 ! ( 10 - 2 ) !} \cdot 1^{8} i^{2} + \frac{10 !}{3 ! ( 10 - 3 ) !} \cdot 1^{7} i^{3} + \frac{10 !}{4 ! ( 10 - 4 ) !} \cdot 1^{6} i^{4} + \frac{10 !}{5 ! ( 10 - 5 ) !} \cdot 1^{5} i^{5} + \frac{10 !}{6 ! ( 10 - 6 ) !} \cdot 1^{4} i^{6} + \frac{10 !}{7 ! ( 10 - 7 ) !} \cdot 1^{3} i^{7} + \frac{10 !}{8 ! ( 10 - 8 ) !} \cdot 1^{2} i^{8} + \frac{10 !}{9 ! ( 10 - 9 ) !} \cdot 1^{1} i^{9} + \frac{10 !}{10 ! ( 10 - 10 ) !} \cdot 1^{0} i^{10}

Simplify

\frac{10 !}{0 ! ( 10 - 0 ) !} \cdot 1^{10} i^{0} : 1

Simplify

\frac{10 !}{1 ! ( 10 - 1 ) !} \cdot 1^{9} i^{1} : 10 i

Simplify

\frac{10 !}{2 ! ( 10 - 2 ) !} \cdot 1^{8} i^{2} : 45 i^{2}

Simplify

\frac{10 !}{3 ! ( 10 - 3 ) !} \cdot 1^{7} i^{3} : 120 i^{3}

Simplify

\frac{10 !}{4 ! ( 10 - 4 ) !} \cdot 1^{6} i^{4} : 210 i^{4}

Simplify

\frac{10 !}{5 ! ( 10 - 5 ) !} \cdot 1^{5} i^{5} : 252 i^{5}

Simplify

\frac{10 !}{6 ! ( 10 - 6 ) !} \cdot 1^{4} i^{6} : 210 i^{6}

Simplify

\frac{10 !}{7 ! ( 10 - 7 ) !} \cdot 1^{3} i^{7} : 120 i^{7}

Simplify

\frac{10 !}{8 ! ( 10 - 8 ) !} \cdot 1^{2} i^{8} : 45 i^{8}

Simplify

\frac{10 !}{9 ! ( 10 - 9 ) !} \cdot 1^{1} i^{9} : 10 i^{9}

Simplify

\frac{10 !}{10 ! ( 10 - 10 ) !} \cdot 1^{0} i^{10} : i^{10}

= 1 + 10 i + 45 i^{2} + 120 i^{3} + 210 i^{4} + 252 i^{5} + 210 i^{6} + 120 i^{7} + 45 i^{8} + 10 i^{9} + i^{10}

Simplify

1 + 10 i + 45 i^{2} + 120 i^{3} + 210 i^{4} + 252 i^{5} + 210 i^{6} + 120 i^{7} + 45 i^{8} + 10 i^{9} + i^{10} : 32 i

= 32 i

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Frequently Asked Questions (FAQ)

What is expand (1+i)^{10} ?
The solution to expand (1+i)^{10} is 32i