Question

Trignometry probelm. Name three angles (not in the same quadrant)in with the sin is posistive

Answer 1

Well you know sin is positive in the 1st and 2nd quadrant. So any angle from those quadrants will produce a + sin. What you may not notice is that the y-axis will also produce a positive sin

Answer 2

This is where the 3 values come from

Answer 3

@sweetburger

Answer 4

so is that 0 to 180 i learned it in class is that right

Answer 5

well the 1st and 2nd quadrants would be (0,180)

Answer 6

at 90 or pi/2 is technically not in any quadrant and is actually just the positive y-axis

Answer 7

pick an angle greater than pi/2 but less than pi this will be your angle for the 2nd quadrant. pick an angle greater than 0 but less than pi/2 this is your angle for the 1st quadrant. Then pick pi/2 for your 3rd angle which produces a positive sin.

Answer 8

ok am i right about how that name three angle not all in the same quadreant which sine is negative? 190, 280,200

Answer 9

190, 280, and 200 would all produce a negative sin although 190 and 200 fall in the same quadrant

Answer 10

there a question that said that in general all angles between (blank) and (blank) have a sine value which is negative i put 180 through 360

Answer 11

@jdoe0001

Answer 12

@phi

Answer 13

yes you would be correct on that

Answer 14

ok my paper also says determine the measure of angles in uadrant 2 which would have the same sine value as 43 degrees.