By the angle difference formula for sines, we have:

By the angle sum formula for tangents, we have:

.
Rationalizing the denominator gives

as the final answer.
Yeah it’s My favorite I’m really excellent in Math That’s My 1st favorite subject
Answer:
<4
Step-by-step explanation:
The vertex of the angle is on the lighthouse and one ray/angle is on the boat.
In this question, the information that Katie has already read 32% of a book that has a total of 80 pages is of great importance. This information is enough to find the required answer to the question.
Total number of pages Katie has to read = 80
Percentage of pages that Cathie read = 32%
Number of pages that Katie read = (32/100) * 80
= 256/10
= 25.6 pages
Then
The number of pages that Katie have left to read = 80 - 25.6
= 54.4 pages
So Katie has 54.4 pages left to read.
Three hundred ninety six divided by twenty four = 16.5