Question

10. If A+B+C =180° Show that
i) tan A + tan B+ tan C = tan A tan B tan C
ii) cotA cotB + cotB cotC + cotC cotA = 1​

Answer 1

Answer:

$\huge \fbox \orange{Good \: \: Evening}$

In 1918, the world was ravaged by the deadliest pandemic in history, the Spanish Flu. D.W. Sutherland, the mayor of Kelowna in 1918 issued a public notice banning all gathering of more than 10 people in an effort to limit the spread of the deadly virus. The public notice issued by the City of Kelowna on Thursday, Nov.