Verify the identity.cos 
= -sin ?
What will be an ideal response?
cos 
= cos ? cos 
- sin ? sin 
= (cos ?)(0) - (sin ?)(1) = - sin ?.
Mathematics
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Write a variation equation in the given variables.Let f(L) be the width (in feet) of a rectangle with an area of 8 square feet and a length of L (in feet).
A. f(L) = 8 + L
B. f(L) = 
C. f(L) = 
D. f(L) = 8L
Mathematics
Make the indicated conversion within metric units of mass.63 kilograms to grams
A. 63,000 g B. 0.063 g C. 0.63 g D. 6300 g
Mathematics
Answer the question.Give a definition of Domain.
What will be an ideal response?
Mathematics
Select an inequality for the shaded region shown in the figure.
?
?
A. 
B. 
C. 
D. 
E. 
Mathematics