Trig
posted by Kate .
solve to four decimal places
1.3224sinx + 0.4732=0 :for all real x values
solve for sinx, then arcsinx.
solve for sinx, then arcsinx.
so its sinx= .4732/1.3224
and i get .36594 but how do you get the other values for a real x
Ok, use your calculator. Sinx is negative in the third and fourth quadrants.
from my calc: arcsinx=20.967
Now the thinking part.
x= 36020.967 + n360 will give all those angle.
but the other one is
x= 180+20.967 + n360 for the other ones.
thats how you find degrees right? i need to find radian. which is x+2kpi so all i have to do is .3659+2kpi.
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