Bear in mind that, when it comes to trigonometric functions, the location of the exponent can be a bit misleading, however recall that sin²(θ) is really [ sin( θ )]²,
![\bf 2sin^2(2x)=2\implies sin^2(2x)=\cfrac{2}{2}
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sin^2(2x)=1\implies [sin(2x)]^2=1\implies sin(2x)=\pm\sqrt{1}
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sin(2x)=\pm 1\implies sin^{-1}[sin(2x)]=sin^{-1}(\pm 1)](https://tex.z-dn.net/?f=%5Cbf%202sin%5E2%282x%29%3D2%5Cimplies%20sin%5E2%282x%29%3D%5Ccfrac%7B2%7D%7B2%7D%0A%5C%5C%5C%5C%5C%5C%0Asin%5E2%282x%29%3D1%5Cimplies%20%5Bsin%282x%29%5D%5E2%3D1%5Cimplies%20sin%282x%29%3D%5Cpm%5Csqrt%7B1%7D%0A%5C%5C%5C%5C%5C%5C%0Asin%282x%29%3D%5Cpm%201%5Cimplies%20sin%5E%7B-1%7D%5Bsin%282x%29%5D%3Dsin%5E%7B-1%7D%28%5Cpm%201%29)
 
 
        
        
        
Answer: 2nd option 
Step-by-step explanation:
 
        
             
        
        
        
Answer:
As per the statement;
The moon takes 28 days to orbit around the earth going at a distance of 2,413,000 km
From the above information, 
The ratio between Distance and Days is; 
then,
 the distance it takes for the moon to travel one day of its orbit around the earth we have;
 km.
 km.
Therefore, the distance in kilometer does the moon cover in 1 day is 86178.57 km
 
        
                    
             
        
        
        
Answer:
15
Step-by-step explanation:
4-(-2)+3(3)
4+2+9
15
 
        
                    
             
        
        
        
Step-by-step explanation:
 -3(-x -3y) = 3( x +3y) = 3x+9y