Year 12s: what will be the first way you research your future options? >>

A quick tan clarification question??? (1 mark)

Scroll to see replies

Those are not the two angles for tan.

The first angle is 36.9 and is in the first quadrant where tan is positive. Tan is also positive in the 3rd quadrant so to get an angle in the third quadrant do 180 +36.9 which gives you 216.9

Therefore values of tan are 216.9 and 36.9

Cheers

I understand now :smile:

But i'm just wondering how did you know tan was postive in the 3rd region?

Is it a fact you have to learn or did you just know from when you added 180? :h:

Reply 21

GreenLantern1

Original post by blueray

Cheers

I understand now :smile:

But i'm just wondering how did you know tan was postive in the 3rd region?

Is it a fact you have to learn or did you just know from when you added 180? :h:

CAST diagram

All Sine Tan Cos

Tan is the third one. I swear sometimes it seems like you're ina whole another world lol. o you get that though? :colondollar:

Reply 22

User570431

Original post by GreenLantern1

CAST diagram

All Sine Tan Cos

Tan is the third one. I swear sometimes it seems like you're ina whole another world lol. o you get that though? :colondollar: