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ziro4ka [17]
1 year ago
13

If the measure of angle is 0 is7x/4, which statements are true?

Mathematics
2 answers:
gayaneshka [121]1 year ago
5 0

Answer:

a) The measure of the reference angle is 45°

Step-by-step explanation:

Reference angle:

   \sf \dfrac{7\pi }{4} \ is \ in \ the \ fourth \ quadrant.\\\\ \text{Reference angle = 2$\pi - \theta$}\\

                             \sf =2\pi -\dfrac{7\pi }{4}\\\\ =\dfrac{8\pi }{4}-\dfrac{7\pi }{4}\\\\= \dfrac{\pi }{4}\\\\=\dfrac{180}{4}\\\\

                             = 45°

Aleonysh [2.5K]1 year ago
4 0

Answer:

See below

Step-by-step explanation:

As the other answerer posted : the reference angle is 45 °

<u>ALSO</u>   tan = -1     and sin = - sqrt(2) / 2

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