3π/4 angle is in the second quadrant, so cos (3π/4) is going to be negative.
Reference angle of 3π/4 is (π - 3π/4) = π/4
cos(π/4) = √2/2
cos (3π/4) = - √2/2
Answer is C.
Answer:
555
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the correct answers are
What value is placed on top of the X? 90
What value is placed on the bottom of the X? 21
What is the factored form of 9x2 + 21x + 10? (3x + 2)(3x + 5)
Step-by-step explanation:
i got it right, hope this helps :D
Answer:
its b
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I hope this helped
Answer:
-2 is the slope
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