Verify the identity.cos 
= -sin x
What will be an ideal response?
cos 
= cos x cos 
- sin x sin 
= (cos x)(0) - (sin x)(1) = -sin x.
Mathematics
You might also like to view...
When a function reaches a maximum value (at a peak), the rate of change is 0.
Answer the following statement true (T) or false (F)
Mathematics
Write the binomial expansion of the expression.(5x + 3)3
A. 25x2 + 30x + 9 B. 125x3 + 225x2 + 225x + 27 C. 25x6 + 15x3 + 729 D. 125x3 + 225x2 + 135x + 27
Mathematics
Graph the rational function.f(x) = 
A. 
B. 
C. 
D. 
Mathematics
Use an associative property to rewrite the algebraic expression. Once grouping has been changed, simplify the resulting algebraic expression.6 + (4 + x)
A. (6 + 4) + x; 10x B. (6 + 4) + x; 10 C. (6 + 4) + x; 10 + x D. 6 + (4 + x); 6 + 4x
Mathematics