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Mathematics 19 Online
KingPizza:

Given two angle measures in standard position, which of the following pairs of angles are coterminal? A: -90o and 4π B: 120o and 4π3 C: 270o and 7π2 D: -360o and π2

aidenj:

wellwhat do u think we can rule out

KingPizza:

I didn't think it would be option D but of course I could be wrong

aidenj:

dont think like that ur most lickly to get it wrong if u dot belive in urself and are confident

KingPizza:

well i believe we can eliminate that answer

aidenj:

what about c is that coterminal

aidenj:

actully lets go back to d how is it not right

KingPizza:

well they have to be in standard position and have a common terminal side I know D doesn't

aidenj:

1 attachment
aidenj:

look at that

aidenj:

so does that mean d is right

KingPizza:

well it says, -2 pi, not positive 2 pi, so D just has the opposite sign so not that

KingPizza:

wait no I read them incorrectly

KingPizza:

yeah now I think it is right

aidenj:

alright good job

KingPizza:

so apparantly that was not correct

aidenj:

seriously

aidenj:

im so sry

KingPizza:

now I figure out how we solved it wrong I took another attempt and the answer was C

aidenj:

nice job im sry

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