lilotheg
Answered

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In order to verify the equation sin (θ +π/4) =-cosθ. What value would you need to know besides sin (π/4)?
Group of answer choices

a cos (π/4)

b sin (2π/3)

c tan (2π/3)

d cos ((-π)/3)

Sagot :

musicalgeek269

Answer: A cos (π/4)

I just took a test with this question and got it right

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