Verify the identity.tan 2 ? (1 + cos 2?) = 1 - cos 2?

What will be an ideal response?

tan 2 ? (1 + cos 2?) = (1 + cos 2?) = 1 - cos 2?

Mathematics

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Simplify.2

A. 2 
B.  
C.  
D.

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Solve the system by substitution. 3x - 13 = -y2x + 9y = -8

A. {(-5, 2)} B. {(-5, -2)} C. {(5, 2)} D. {(5, -2)}

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Mathematics

Provide an appropriate response.In a fraction, what operation does the fraction bar represent?

A. Subtraction B. Multiplication C. Division D. Addition

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Mathematics

Divide and round to the nearest tenth. ? ?

A. -0.7 B. -0.3 C. -1.0 D. -0.9 E. -0.8

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Mathematics