Verify the identity.cos 
= -sin x
What will be an ideal response?
cos 
= cos 
cos x + sin 
sin x = 0 ? cos x - 1 ? sin x = - sin x
Mathematics
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Find the convergence set for the given power series.
A. x < 10 B. 8 ? x < 10 C. -10 < x < 10 D. 8 < x < 10
Mathematics
Find the area of the specified region.Inside the six-leaved rose r2 = 9 cos 3?
A. 3
B. 
C. 9
D. 18
Mathematics
Use implicit differentiation to find dy/dx.
= x2 + y2
A. 
B. 
C. 
D. 
Mathematics
Find the least common multiple.14, 35
A. 70 B. 49 C. 35 D. 490
Mathematics