Question

How do you solve the equation `sinB=9/11`?

Answer 1

`B=54.9^@" or "125.1^@`

Explanation:

`sinB=9/11`

`rArrB=sin^-1(9/11)=54.9^@larrcolor(red)" related acute angle"`

`"since "sinB>0" then B lies in first/second quadrants"`

`rArrB=54.9" or " (180-54.9)^@=125.1^@`