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
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Round the decimal to the given place value.52.8166 (hundredths)
A. 52.92 B. 52.82 C. 52.72
Mathematics
Use the Binomial Theorem to find the indicated coefficient or term.The coefficient of x in the expansion of (5x + 6)3
A. 540 B. 1,080 C. 450 D. 36
Mathematics
Compute the product.
A. 
B. 
C. 
D. not defined
Mathematics
Write an equivalent expression by factoring.4x(5x + 3) - 5(5x + 3)
A. (4x + 5)(5x - 3) B. (20x - 5)(x + 3) C. (20x + 5)(x - 3) D. (4x - 5)(5x + 3)
Mathematics