Question

The statement "cot =12/5 , sec = -13/5, and the terminal point determined by is in quadrant 4":

A. cannot be true because 12^2+5x^2 not equal to 1 .

B. cannot be true because cot must be less than 1.

C. cannot be true because if cot =-12/5 , then sec = +_13/12.

D. cannot be true because sec is greater than zero in quadrant 4.

Answer 1

sorry dont know this one.

Answer 2

its okay, thanks for trying to help :)

Answer 3

Here this will help

Answer 4

what do i need to do with the graph?

Answer 5

It shows where each trig function is positive right?
Look at your statement carefully

Answer 6

it cant be true because if cot =-12/5 , then sec = +_13/1 2 this statement is correct.

Answer 7

i mean incorrect.

Answer 8

im going with C , thanks @Luigi0210

Answer 9

@Jhannybean finish it?

Answer 10

No thanks. Go ahead.

Answer 11

No, I'm a bit occupied at the moment.. please? >.<

Answer 12

at quadrant IV cos supposed to be +ve and Cot also should be -ve

Answer 13

since any negative is < 1, cot must not be >1 at IV quadrant. we can't determine cot at IV quadrant because it is greater than 1.

Answer 14

hey i got it wrong i gueesed lol. thanks though!

Answer 15

u can use tan and cot identity formula that equals to 1

Answer 16

sin^2 θ + cos^2 θ = 1

tan^2 θ + 1 = sec^2 θ

cot^2 θ + 1 = csc^2 θ

these are Pythagorean Identities. Fundamental trig identitiy

Answer 17

@StudentLearner it okay.

Answer 18

d