Find an equivalent expression.sin 
A. -cos x
B. sec x
C. csc x
D. cos x
Answer: A
Mathematics
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Use the appropriate sum or difference identity to write the given expression as a function of x alone.cos (90° + x)
A. cos x B. -sin x C. -cos x D. sin x
Mathematics
Name the property used to go from step to step indicated by an a), b), c), or d).
What will be an ideal response?
Mathematics
Add. Find the LCD first.
+ 
A. 
B. 
C. 
D. 
Mathematics
Find the GCF.-x2, -3x, -24x4
A. -3x B. -x C. -x2 D. -3x2
Mathematics