Verify the identity.1 - 
= -sin ?
What will be an ideal response?
1 - 
= 1 - 
= 1 - 
= 1 - (1 + sin ?) = -sin ?
Mathematics
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Simplify.(x-9)-7
A. x63
B. 
C. -x63
D. -7x63
Mathematics
Solve the problem.A collection of dimes is arranged in a triangular array with 15 coins in the base row, 14 in the next, 13 in the next, and so on with 1 dime in the last row. Find the value of the collection.
A. $6.00 B. $12.00 C. $24.00 D. $1.20
Mathematics
Express the product as a sum containing only sines or cosines.sin(6?) sin(4?)
A. 
[cos(10?) - cos(2?)]
B. 
[sin(10?) + cos(2?)]
C. 
[ cos(2?) - cos(10?)]
D. sin2(24?2)
Mathematics
Assume that A = {1, 2, 3, 4, 5, 7, 8}, B = {5, 3, 4}, C = {5, 7, 3} and that U is the universal set of natural numbers less than 11. Find A?(B?C).
 figure 1.png)
Mathematics