Find the relative extrema of the function and classify each as a maximum or minimum.f(x) = x2 + 7x - 6

A. Relative maximum:  
B. Relative minimum:  
C. Relative minimum:  
D. Relative maximum:  


Answer: C

Mathematics

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Find all the complex roots. Leave your answers in polar form with the argument in degrees.The complex fifth roots of  + i

A. (cos 30° + i sin 30°), (cos 102° + i sin 102°), (cos 174° + i sin 174°), (cos 246° + i sin 246°), 
B. 32(cos 30° + i sin 30°), 32(cos 102° + i sin 102°), 32(cos 174° + i sin 174°), 32(cos 246° + i sin 246°), 
C. (cos 6° + i sin 6°), (cos 78° + i sin 78°), (cos 150° + i sin 150°), (cos 222° + i sin 222°), 
D. 32(cos 6° + i sin 6°), 32(cos 78° + i sin 78°), 32(cos 150° + i sin 150°), 32(cos 222° + i sin 222°), 

Mathematics

Perform the indicated operation.(3x2 + 7x - 1) - (-5x2 + 9x + 2) + (-2x2 - 3x - 5)

A. 6x2 - 5x - 8 B. -4x2 + 5x - 8 C. -4x2 - 5x + 8 D. 6x2 + 13x + 4

Mathematics

Find the second-order partial derivative.Find fyx when f(x,y) = 8x3y - 7y2 + 2x.

A. -14 B. -28 C. 48xy D. 24x2

Mathematics

Prove the identity.sec  = -csc u

What will be an ideal response?

Mathematics