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simplify (6+7i)(3-7i)

Solution

simplify

(6 + 7 i) (3 - 7 i)

Solution

67 - 21 i

Solution steps

(6 + 7 i) (3 - 7 i)

Apply complex arithmetic rule:

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

= (6 \cdot 3 - 7 (- 7)) + (6 (- 7) + 7 \cdot 3) i

Simplify

(6 \cdot 3 - 7 (- 7)) + (6 (- 7) + 7 \cdot 3) i : 67 - 21 i

= 67 - 21 i

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h=(145)/((2sqrt(1/(571^2)-1/(1250^2))))

h = \frac{145}{( 2 \frac{1}{57 1 ^{2}} - \frac{1}{125 0 ^{2}} )}

Frequently Asked Questions (FAQ)

What is (6+7i)(3-7i) ?
The solution to (6+7i)(3-7i) is 67-21i