Solve, in the interval 0° ≤ θ<360°, the following equations. Give answers to the nearest 0.1°.
Hello TweetyI knew because I've done it so often! But the general method is:
Let .
Then, comparing coefficients of and :andIf we now divide the second of these equations by the first, we get:And if we square and add the two equations:
So there we have it:
, since
Grandad