Question

Find the exact value of the trigonometric function. Do not use a calculator.

Answer 1

\[\cot (-\frac{ 5\pi }{ 4 })\]

Answer 2

180° = PI radians
90° = PI/2 radians
and 45° = PI/4radians
so you are asked to find the cot (-5 *45°)
The cotangent of 45° = 1

Answer 3

thank you so much can i ask you one more quick question.

Answer 4

sure

Answer 5

The given angle is in standard position. Determine the quadrant in which the angle lies. -25°

A. Quadrant III

B. Quadrant II

C. Quadrant IV

D. Quadrant I

Answer 6

so you are asking about -25° and this has nothing to do with the -5*PI()/4 question right?

Answer 7

No its a whole different question... you weren't done with the 1st question?

Answer 8

I'd say it is asking for the cot (-5*45°) or cot (-225°)
and that equals -1

Answer 9

i got the quadrant one already so dont mind the second question.. so the first question i asked is -1

Answer 10

As for the quadrant in which -25° is found I'd say quadrant IV
(see attached)

Answer 11

yea i already got IV i figured that one out.. i appreciate the help anyways..

Answer 12

Yesd I'd day -1 is the answer to the first question.
By the way did you find -25° is in quadrant IV?
I guess you did !!

Answer 13

yea i found it thanks anyways!! and thank you for the first question as well!

Answer 14

you are welcome - and I hope I got it right (I think so - but you never know)