Find #160; ∑_i=1^4(2i 3) ∑_i=1^4(2i 3)=2(1) 3+2(2) 3+2(3) 3+2(4) 3 =(2 3)+(4 3)+(6 3)+(8 3) = 1+1+3+5 =8 ...

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Zeroes of a Polynomial

Find ∑4i=12...

Question

Find $4 \sum i = 1 (2 i - 3)$

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Solution

Find $\sum_{i = 1}^{4} (2 i - 3)$
$\sum_{i = 1}^{4} (2 i - 3) = 2 (1) - 3 + 2 (2) - 3 + 2 (3) - 3 + 2 (4) - 3$
$= (2 - 3) + (4 - 3) + (6 - 3) + (8 - 3)$
$= - 1 + 1 + 3 + 5$
$= 8$

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Similar questions

3 + 4 i

- 5 + 12 i

x + i y = \sqrt{\frac{3 + 4 i}{5 + 12 i}}

169 (x^{2} + y^{2}) =

\to O A = 3 i + 4 j + 12 k, \to O B = 12 i + 3 j + 4 k,

\to O C = 4 i + 12 j + 3 k .

\to O A = 3 i + 4 j + 12 k, \to O B = 12 i + 3 j + 4 k,

\to O C = 4 i + 12 j + 3 k .

\to O A

\to O C .

\to O A = 3 i + 4 j + 12 k, \to O B = 12 i + 3 j + 4 k,

\to O C = 4 i + 12 j + 3 k .

\to O A

\to O B

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