Question

7upon 9+(-2 upon3)+(-11upon 18 )+1upon 6
$\frac{7}{9} + \frac{ (- 2 )}{(3)} + \frac{( - 11)}{(18)} + \frac{1}{6}$
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Answer 1

${ \large{ \implies{ \bf{ \dfrac{7}{9} + \dfrac{ - 2}{3} + \dfrac{ - 11}{18} + \dfrac{1}{6} }}}}$

${ \large{ \implies{ \bf{ \dfrac{14 - 12 - 11 + 3}{18} }}}}$

${ \large{ \implies{ \bf{ \dfrac{17 - 23}{18} }}}}$

${ \large{ \therefore{ \bf{ \dfrac{ - { \cancel6}}{ {\cancel18}} = \dfrac{ - 1}{3} \: \: Ans}}}}$

Answer 2

Answer:

1825

1825- 1826

William Sturgeon (British) invents the electromagnet, a coil of wires with an iron core to enhance the magnetic field.