Verify the identity.tan ?(csc ? - sin ?) = cos ?
What will be an ideal response?
tan ?(csc ? - sin ?) = tan ? ? csc ? - tan ? ? sin ? = 
? 
- 
? sin ? = 
- 
= 
= 
= cos ?
Mathematics
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At what time was the temperature the highest?
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Determine if the function is increasing or decreasing over the interval indicated.y = -6x3 ; x < 0
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