gubitosemary
Answered

Westonci.ca is the Q&A platform that connects you with experts who provide accurate and detailed answers. Discover comprehensive answers to your questions from knowledgeable professionals on our user-friendly platform. Our platform offers a seamless experience for finding reliable answers from a network of knowledgeable professionals.

Rewrite with only sin x and cos x.
sin 3x - cos x (6 points)

Select one:
a. 2 sin x - sin3x - cos x
b. 2 sin x cos2x + sin x - 2 sin3x - cos x
c. 2 sin3x cos4x + 1
d. 3 sin x cos x - sin3x - cos x

Sagot :

Answer:

sin(3x) = sin(x + 2x)

          = sinx cos(2x) + cosx sin(2x)

          = sinx [1 - 2sin2x] + cosx [2sinxcosx]

          = sinx - 2sin3x + 2cos2xsinx

Thanks for stopping by. We strive to provide the best answers for all your questions. See you again soon. We hope you found what you were looking for. Feel free to revisit us for more answers and updated information. Get the answers you need at Westonci.ca. Stay informed with our latest expert advice.