Prove the identity.
= cos x + sin x
What will be an ideal response?
Answers may vary. One possible solution is:
= 
= 
? 
= 
Mathematics
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Find the indicated coordinates.A circle has its center at the origin. One endpoint of a diameter is (-9, 5). Find the coordinates of the other endpoint of the diameter.
A. (9, -5) B. (-5, -9) C. (-9, -5) D. (5, -9)
Mathematics
Prove the identity.cos-1x = sin-1
, for x ? 0
What will be an ideal response?
Mathematics
Solve the equation.10w - 9 = -8 + 3w
A. 
B. - 7
C. - 
D. 7
Mathematics
Solve the system using Gauss-Jordan elimination.
a. ( -1, 12, 11, 13 )
b. ( 1, -12, 11, -13 )
c. ( 1, -12, 11, 13 )
d. ( 1, 12, 11, 13 )
e. ( 1, 12, -11, 13 )
Mathematics