DF001
  • DF001
Identify the terminal side quadrant of given angle in standard Θ=2.5 Θ=-1.9
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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chestercat
  • chestercat
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DF001
  • DF001
I have a hard time comprehending/understanding this question..... I need immediate help.. :/ Is it asking me what quadrant those angles falls in??
DF001
  • DF001
Can someone show me these two problems on a graph.. I think they fall in Q1 and Q4 but I'm not sure..
campbell_st
  • campbell_st
so you are working in Radians..?

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DF001
  • DF001
hold up
DF001
  • DF001
sorry my textbook does not say
DF001
  • DF001
It does mention it as "given angles" I'm confused now
campbell_st
  • campbell_st
ok... I'll assume it's radians... as degrees don't make a lot of sense... |dw:1447223546102:dw| so do you know the value of pi..?
DF001
  • DF001
pi is 3.14?
campbell_st
  • campbell_st
there are 2pi or approx 6.28 radians in a revolution... so pi/2 = 1.57 radians = 90 pi = 3.14 radians 3pi/2 = 4.71 radians 2pi = 6.28 radians so if you turn 2.5 radians from the zero maker, which quadrant..?
campbell_st
  • campbell_st
|dw:1447223768978:dw|
DF001
  • DF001
2.5pi/2? 3.9?
campbell_st
  • campbell_st
|dw:1447223826534:dw|
DF001
  • DF001
i am confused
DF001
  • DF001
i never learned this in class idk why teacher put this on my homework
campbell_st
  • campbell_st
of if it is \[\theta = 2.5\] it just means move 2 .5 radians... 1 radian = 57. 3 degrees so 2.5 radians = 2.5 x 57.3
DF001
  • DF001
143.25
DF001
  • DF001
degree?
DF001
  • DF001
143 degree is on second quad
campbell_st
  • campbell_st
so from the diagram of the quadrants... \[\frac{\pi}{2} = 90 ~~~~ \pi = 180 ~~~~ \frac{3\pi}{2} = 270 ~~~ 2 \pi = 360\]
campbell_st
  • campbell_st
that's correct... but you need to show the angle in radians... is it is written in radians.
DF001
  • DF001
on my text book it just says theta=2.5
DF001
  • DF001
Without using a calculator, identify the terminal side quadrant of given angles in standard position.
campbell_st
  • campbell_st
ok... the normal practice to trig and circular measure is that you move away from angles to radians, as these can be written as exact values.... 15 = pi/12
campbell_st
  • campbell_st
so you have the 1st answer 2nd quadrant.... negative angles just mean you move clockwise or you are subtracting that measure from a full revolution.
DF001
  • DF001
-45*3pi/2 for second one?
campbell_st
  • campbell_st
well if the measure is -1.9 1.9 x 57.3 = in degrees is -108.9 so its in the 3rd quadrant...
campbell_st
  • campbell_st
it's in the diagrams above
DF001
  • DF001
thank you
DF001
  • DF001
I need help with another question if you dont mind
DF001
  • DF001
Find 2 positive and 2 negative angles that are co terminal with the angles given. Θ = 75 degrees
DF001
  • DF001
i got 3 questions on this and i am stuck

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