Question

Evaluate the following expressions. The answer must be given as a fraction, NO DECIMALS.
If tan=−3/4 and cosX>0, then

sinx=
cosx=
cotx=
secx=
cscx=

x is acting as theta.

Answer 1

@RadEn help?

Answer 2

i sure x in th4 quadrant

Answer 3

idk... i can do it with out restrictions... but with i get totally thrown off...

Answer 4

5

Answer 5

smart :)

Answer 6

thanks i try ^_^

Answer 7

so sin should be -3/5... but that is less than one...

Answer 8

yup, that's correct
dont worry , intervals for sin -1<= sin <= 1

Answer 9

awww snap (: thanks a bundle !

so, cos= 4/5
sec= -5/3
csc= 5/4
cot=-4/3

Answer 10

sec just follows with cos, if cos positive then sec positive also

Answer 11

but not in that quadrant though?