Question

solve the equation, sinx=sqrt(3) cosx, where 0<=x<=90

Answer 1

tanx=sqrt3

Answer 2

i was typing that ^

Answer 3

so, x=... ?

Answer 4

60?

Answer 5

yes.

Answer 6

ohh, why this easy question i need to ask -_-

Answer 7

no problem :)

Answer 8

For 0<=x<360, how many roots does the equation 3sin^(2)x+2sinx-1=0 have?

Answer 9

3y^(2)+2y-1=0

Answer 10

y=-1 or 1/3

Answer 11

very similar to previous question...
what you get ?

Answer 12

x=-90.....
270?

Answer 13

for sin x = -1
yes, x= 270 is correct.
and you already know there will be 2 values of x for sin x = 1/3
right ?

Answer 14

yup

Answer 15

19.47

Answer 16

90+19.47 =109.47 ??

Answer 17

sin (109.47) is not 1/3

Answer 18

\(\sin (180-x)=sin x\)

Answer 19

180-19.47=160.53?

Answer 20

yes.

Answer 21

3?

Answer 22

total 3, correct :)

Answer 23

wait!

Answer 24

0<=x<=90 -_-

Answer 25

270 and 160 won't work
only 1 , 19.

Answer 26

hey, that's the first question

Answer 27

is the second question: For 0<=x<360

Answer 28

sorry!
3 is correct.

Answer 29

thats why, new Q, new post, please ?

Answer 30

ok