Evaluate F - s2/1

Please help me this is due
I will mark you as brainliest

Sherina wrote and solved the equation. x-56=230 x-56-56=230-56 x=174 what was sherina’s error? sherina’s work is correct. sherina only needed to subtract 56 from 230. sherina made a subtraction error when subtracting 56 from 230. sherina should have added 56 to both sides of the equation.

How do you solve a question like this?

If value of cos330° is √3/2 then find tan165°.