Asked by y912f
                find the exact values of s in the given intervals that have the given circular function values.
1. [pi/2,pi]; sin s=square root 2/2
2. [pi/2,pi]; cos s=-square root 3/2
            
            
        1. [pi/2,pi]; sin s=square root 2/2
2. [pi/2,pi]; cos s=-square root 3/2
Answers
                    Answered by
            Damon
            
    these are simple angles
sin 45 degrees = (sqrt 2) /2
cos 30 deg = (sqrt 3)/2
But
Look, you need a calculator. Here is one.
For example for the angle whose sin is .75
type asin(.75) and click on the equal sign.
http://www.mathsisfun.com/scientific-calculator.html
    
sin 45 degrees = (sqrt 2) /2
cos 30 deg = (sqrt 3)/2
But
Look, you need a calculator. Here is one.
For example for the angle whose sin is .75
type asin(.75) and click on the equal sign.
http://www.mathsisfun.com/scientific-calculator.html
                    Answered by
            Damon
            
    Oh, did not notice between 90 and 180 degrees
180 - 45 = 135 degrees
180 - 30 = 150 degrees
    
180 - 45 = 135 degrees
180 - 30 = 150 degrees
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