Question

tan(25pi/2)=
How do i solve for this?
The options are:
0
1
-1
undefined

Answer 1

hello do you need help

Answer 2

yes. but i already found out the answer to this question
here is another that i need help with if you are willing to help that would be awesome

"The statement tantheta=-12/5 and csctheta==13/12 and the terminal point determined by theta is in quadrant 3.......

a.cannot be true because 12^2+5^2 does not equal 1"
b.cannot be true because if tantheta=-12/5 then csctheat=+-13/5"
c.cannot be true because tantheta must be less than one"
d.cannot be true because tantheta is greater than zero in quadrant 3"


Which one of these fits the best and why?

Answer 3

@javalos01

Answer 4

I know that if it is in quadrant 3 then sintheta is negative and costheta is positive.

Answer 5

ok what do u need

Answer 6

correct go on

Answer 7

if all of them are wrong there has to be a correct one

Answer 8

which one do you for sure think it is

Answer 9

i think that a is the correct one because when you are trying to solve for a trigonometric eqtuation and you have two sides you always set it equal to one. and if 12^2+5^2 arent equal to 1 it cannot be true

Answer 10

ok i gtg and i think ur correct

Answer 11

well thanks

Answer 12

\[\tan \frac{ 25 \pi }{ 2 }=\tan \left( 6\times 2 \pi+\frac{ \pi }{ 2 } \right)=\tan \frac{ \pi }{ 2 }=in finity\]

Answer 13

infinity means undefined.

Answer 14

oh i see thanks for that!

Answer 15

can you help with my other question. did i chose the right answer?

Answer 16

sure ,if possible.

Answer 17

alright its on here already and that guy tried to help me but iw as wondering if you can double check it for me its the question above ^^^

Answer 18

ok

Answer 19

your statement is wrong tan theta is positive in quadrant 3

Answer 20

here csc theta is positive, tan theta is negative so theta lies in 2nd quadrant.

Answer 21

d is correct.

Answer 22

d says statement is wrong because tan theta >0 in quadrant 3.

Answer 23

but how would tantheta be postitive when its y/x and y is negative
-y/x= a negative outcome

Answer 24

@surjithayer

Answer 25

oh yeah. okay gotcha! and that cannot work so it must be in the second quadrant because tantheta is greater than 0 in quadrant 3 and in the statment it says that tan is negative

Answer 26

awesome thanks

Answer 27

yw