Author: Benny varghese

Positive branch

sin x

This is a 

Prepared by :
Benny Varghese
PGT Mathematics
JNV Pathanamthitta

BENTECH 

presentation  ......

cos x

Positive 

Sin x is

Negative

Cos x is 

Positive

Negative

(

)

(

)

Sign of T-functions

Prepared by 
Benny Varghese
PGT Math's
JNV Pathanamthitta

I-Quadrant

II-Quadrant

III-Quadrant

IV-Quadrant

( Cosα , Sinα )

Move/drag point B along the circle...

A = Point(xAxis)
c = Circle(A, 1)
O = Point(c)
N = Point(c)
r = Segment(N, O)
E = Intersect(r, xAxis)
C = Point(c)
B = Point(c)
a = OrthogonalLine(A, xAxis)
d = OrthogonalLine(B, xAxis)
e = Line(B, xAxis)
F = Intersect(xAxis, yAxis)
J = Intersect(d, xAxis)
l = Segment(B, J)
m = true
L = Point(yAxis)
M = Point(yAxis)
i = Line(L, xAxis)
q = Line(M, xAxis)
P = Midpoint(B, J)
D = Midpoint(A, J)
f = Segment(A, J)
text14: d + ""
text13: e + ""
G = (-0.004626793304255954, 0)
H = Intersect(r, xAxis)
b = Segment(H, B)
α = Angle(C, H, B)
text19: " α= " + α