Answer:
168
Step-by-step explanation:
The simplest form is, <span>x-1 </span>
<span>
</span>
He subtracted the 29fron the 30
Let

. Then

, and so as

, you have

. The limit is then equivalent to
If we know that the WHOLE angle added is 105 and only part is 75 you need to subtract the whole angle and subtract from part of the whole angle.
105-75=30. You get 30 And that’s you answer!
Picture to help with your understanding.