Prove the identity. = sin t cos t - 2 sin3t cos t

What will be an ideal response?


  = 
  =    Using the double-angle identity 
  =  Using the double-angle identities
  
=  
  = sin t cos t - 2 sin3t cos t 

Mathematics

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Find the exact area under the curve between the indicated values of x.y = x2(x - 2)2; between x = 0 and x = 2

A.
B.
C.
D.

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Find the LCM.28y3z and 32y

A. 896y4z B. 14y3z C. 224y3z D. 14yz

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Find an equation of the line. Write the equation using function notation.(4, 29), (6, 39)

A. y = 5x + 9
B. f(x) = -5x + 49
C. f(x) = x + 
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Find the function value.Let f(x) = -1.7e-0.8x. Find f(-1.6), rounded to four decimal places.

A. -6.1143 B. 0.4727 C. -0.4727 D. 6.1143

Mathematics