dmcdowell
  • dmcdowell
For which acute angle are the sine of the angle and cosine of the angle equal? 30º 45º 60º 75º
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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katieb
  • katieb
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mathstudent55
  • mathstudent55
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dmcdowell
  • dmcdowell
is it A
mathstudent55
  • mathstudent55
The figure above shows a unit circle with center at the origin. Each point of intersection of the terminal side of an angle and the unit circle has coordinates (x, y). The x-coordinate is the cosine of the angle. The y-coordinate is the sine of the angle. Since you are looking for \(\sin \theta = \cos \theta\), you are looking for an angle \(\theta\) which produces an intersection point whose x and y coordinates are equal.

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mathstudent55
  • mathstudent55
Look at the four points of intersection. Which one has equal x- and y-coordinates?
dmcdowell
  • dmcdowell
thanks @mathstudent55
mathstudent55
  • mathstudent55
yw

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