sinx*sqrt(2 = 2sinxcosx
sqrt(2 = 2cosx
sqrt(2/2 = cosx
x = pi/4 and 7*pi/4
This is what the answer is very hard like mas1 said. Mostly the way you presented them, didn't queit get the problem at first. Hope you do well, good luck!
__________________
Please refrain from sending me frivolous PM's
|