Question

i need help guys. i need 1 more solution

Answer 1

\[\tan(\theta)^{2}-7\tan(\theta)-12=0\]

Answer 2

i use the quadratic formula and i have 3 out of 4 answers. thisis my answer theta = 83.23,305.07 and 263.23. (there are in degrees) that all i got. what the 4th solution?

Answer 3

when u got 83.23, you add 180 to get 263.23
when u get 305.07, you subtract 180 to get 305.07-180 =... ?
because, the tan is periodic with 180 degrees, that is the value of tan repeats after every 180 degrees.

Answer 4

omg i forgot about that. thanks a lot man. i know how to do this, is that i really forgot. thanks for refreshing my memory

Answer 5

welcome ^_^

Answer 6

wait a sec. if i subtract 180, i wil end upin the 3rd quadrant and the 3rd quadrant is sin.

Answer 7

' 3rd quadrant is sin.'
what does that mean ?

Answer 8

All the quadrants are sine... and cosine.

Answer 9

becuase tan can only be in the 3rd and the 1st. what i meant to say is that 120 degrees is at the 2nd quad. how is tan is postive?

Answer 10

you got 2 roots, right ?
one positive ---> 1st and 3rd Quad
one negative --->2nd and 4th quad.

Answer 11

i dont get it.

Answer 12

ok, what 2 roots do u have for quadratic equation ?

Answer 13

for positive root, u get 83 and 263 --->1st and 3rd Quad

Answer 14

ok

Answer 15

for negative root , u get 120 and 305 approx ---> 2nd and 4th quad

Answer 16

125 and 305

Answer 17

ok i will post another question similiar to this

Answer 18

sure.