Establish the identity.
= cos x + cot x
What will be an ideal response?
= cos x
= 
= 
+ 
= cos x + cot x.
Mathematics
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Answer the question.If x = cos ?, what is cot ? in terms of x?
A. cot ? = 
B. cot ? = 
C. cot ? = 
D. cot ? = 
Mathematics
Solve.
(r + 6) = 
(r + 8)
A. 4 B. 3 C. -4 D. -12
Mathematics
Factor completely. Make sure you factor out the GCF first if possible. If prime, so state.49x2 + 126x + 81
A. (7x - 9)2 B. (7x + 9)(7x - 9) C. (49x + 1)(x + 81) D. (7x + 9)2
Mathematics
Solve the problem.The model of a building has the shape of a rectangular solid. The height is represented by x inches. The base of the model is square and the volume of the model is 
Express the area of the model's base in terms of x.
A. x2 - 900 square inches B. 60x square inches C. (x + 30)(x - 30) square inches D. (x - 30)2 square inches
Mathematics