Verify the identity.7 csc2 x - 5 cot2 x = 2 csc2 x + 5
What will be an ideal response?
7 csc2x - 5 cot2x = 2 csc2x + 5 csc2x - 5 cot2x = 2 csc2x + 5 (csc2x - cot2x) = 2 csc2x + 5
Mathematics
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Solve formula for the specified variable.d = rt
for r
A. r = 
B. r = d - t
C. r = dt
D. r = 
Mathematics
Shade the portion of the diagram that represents the given set.(A ? B) ? 
A. 
B. 
Mathematics
Multiply.(8z + 9)2
A. 64z2 + 144z + 81 B. 8z2 + 144z + 81 C. 64z2 + 81 D. 8z2 + 81
Mathematics
Solve the system of equations using Gaussian elimination or Gauss-Jordan elimination.9w + 7x - 6y - 3z = -248w + 5x - 9y - 3z = -329w + 7x + 7y + 4z = 21-6w - 3x + 7y + 9z = 16
A. (-1, 4, -5, 2) B. (2, 3, -4, -2) C. (2, -3, 4, -1) D. No solution
Mathematics