Establish the identity.cot(x + y) cot(x - y) = 

What will be an ideal response?

cot ( x + y) cot (x - y) =  ?  = .

Mathematics

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Find an equation for the line tangent to the curve at the point defined by the given value of t.x = 10t2 - 7, y = t2, t = 1

A. y = x + 
B. y = 10x - 
C. y = x + 1
D. y = x - 

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Mathematics

Factor completely.2x3 + 2x2 - 40x

A. (x - 4)(2x2 + 10) B. (2x2 + 8x)(x - 5) C. 2x(x - 4)(x + 5) D. 2x(x + 4)(x - 5)

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Mathematics

Find the number of subsets of the set.{x | x is an even number between 11 and 31}

A. 30 B. 32 C. 1024 D. 5

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Mathematics

Complete the table.  Object  Liters  (L)  Milliliters  (mL) Cubic Centimeters  (cc) Cubic Centimeters  (cm3)Capacity of water tank      129?

A.

  Object  Liters
  (L)		  Milliliters
  (mL)		 Cubic Centimeters
  (cc)		 Cubic Centimeters
  (cm3)
Capacity of water tank  1.29  129  129  129

B.
  Object  Liters
  (L)		  Milliliters
  (mL)		 Cubic Centimeters
  (cc)		 Cubic Centimeters
  (cm3)
Capacity of water tank  0.129  12,900  129  129

C.
  Object  Liters
  (L)		  Milliliters
  (mL)		 Cubic Centimeters
  (cc)		 Cubic Centimeters
  (cm3)
Capacity of water tank  129,000  129  129  129

D.
  Object  Liters
  (L)		  Milliliters
  (mL)		 Cubic Centimeters
  (cc)		 Cubic Centimeters
  (cm3)
Capacity of water tank  0.129  129  129  129

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Mathematics