Solution Found!
?For the following exercises, find the requested information.Given that \(\sin
Chapter 9, Problem 21(choose chapter or problem)
QUESTION:
For the following exercises, find the requested information.
Given that \(\sin a=\frac{4}{5}\), and \(\cos b=\frac{1}{3}\), with a and b both in the interval \(\left[0, \frac{\pi}{2}\right)\), find sin(a − b) and cos(a + b).
Text Transcription:
sin a = 4/5
cos b = 1/3
[0, π/2)
Questions & Answers
QUESTION:
For the following exercises, find the requested information.
Given that \(\sin a=\frac{4}{5}\), and \(\cos b=\frac{1}{3}\), with a and b both in the interval \(\left[0, \frac{\pi}{2}\right)\), find sin(a − b) and cos(a + b).
Text Transcription:
sin a = 4/5
cos b = 1/3
[0, π/2)
ANSWER:Step 1 of 3
Using we get:
In the interval cosine is positive.
Using we get: