sin^2x - 3sinx + sinxcosx - 3cosx = 0
sinx(sinx - 3) + cosx(sinx - 3) = 0
(sinx - 3)(sinx + cosx) = 0
sinx = 3 , which is not possible
sinx = -cosx
sinx/cosx = -1
tanx = -1
x = 135° or 225° or in radians, 3π/4 , 5π/4
the period of tanx = 180° or π radians
general solution: = 3π/4 + kπ
x = 5π/4 + kπ , where k is an integer
trig - Help find the general solution to:sin^2x-3cosx+sinxcosx-3sinx=0
TRIG! - Posted by hayden on Monday, February 23, 2009 at 4:05pm. sin^6 x + cos^6...
trig - find the exact solutions 2cos^2x+3sinx=0 the way it stands, that is a "...
Trigonometry. - ( tanx/1-cotx )+ (cotx/1-tanx)= (1+secxcscx) Good one! ...
trig - What's the general solution for 3sin^2x+sinxcosx=2
trig identites - since sin2x+√3cos2x=2sin(2x+60) find the general solution...
precal! - Prove: (3cosx + 4sinx)^2 + (4cosx - 3sinx)^2=5 ...this is all under ...
PRECAL! - Prove: (3cosx + 4sinx)^2 + (4cosx - 3sinx)^2=5 ...this is all under ...
maths - Find the general solution of sin x + sin 2x + sin 3x + sin 4x = 0 ?
Trig - verify the following identity: 2sinxcos^3x+2sin^3cosx=sin(2x)