Sin Equation

Question

Sin Equation

anonymous · Answer

if  $$\sin \theta=\frac{ \sqrt{2} }{ 2 }$$ Which could not be the value of \theta

anonymous · Answer

a. 225*
B. 45*
C.135*
D. 405*

Those are supposed to be degrees just bear with me! lol

anonymous · Answer

sinθ = sin(45)=sin(pi/4) 
more generally θ = n*(pi) + (pi/4)*(-1)^n where n is an integer

anonymous · Answer

225 could not be the value of theta

anonymous · Answer

Thank you so much!

anonymous · Answer

something useful to remember, in which quadrant each of the trig functions is positive
C = cos
A = All
S = sin
T = Tan

|dw:1401517297458:dw|

anonymous · Answer

That graph is super helpful! thank you!

anonymous · Answer

WELCOME :)

neer2890 · Answer

@ kx2bay i think you should add these also
in 1st quadrant : all are positive
in 2nd quadrant: sin and cosecant   are +ve
in 3rd quadrant : tangent and cotangent are +ve
in 4th quadrant: cos and secant are +ve