Prove the identity.sin 
= - cot y sin y
What will be an ideal response?
Left hand side:
sin 
= sin (y) cos 
- cos (y) sin 
Difference identity
= sin y ? 0 - cos y ? 1
= -cos y
Right hand side:
- cot y sin y = - 
? sin y
= - cos y
Mathematics
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Write ? or ? in the blank so that the resulting statement is true.{13, 30, 35} {17, 30, 35, 45}
A. ? B. ?
Mathematics
Find the derivative of y with respect to x.y = 5x4 sin-1 x
A. 
+ 20x3 sin-1 x
B. 
C. 
+ 20x3
D. 
+ 20x3 sin-1 x
Mathematics
Multiply and simplify any radicals in your answer. Assume that all variables represent positive real numbers.
(
- 
)
A. 10
B. 
C. 
- 
D. 5
+ 5
Mathematics
Solve.
= 
- 
A. 9 B. -9 C. 2, 9 D. empty set solution
Mathematics