(sin x/cos x)/ (sin x/cos x) = 1
sin^2 a ( sin^2 a + cos^2 a) = sin^2 a
I do not understand the third one.
simplifying trigonometric expression
a) sinx/tanx cosx
b)sin^4a + sin^2a cos^2a
c)sin0-sin0cos^2+ / sin^20
could someone help me with these?? thank you
3 answers
sin zero - sin zero cos squared / sin squared zero
sin 0 - sin 0 cos^2 / sin^2 0
sin 0 - sin 0 cos^2 / sin^2 0
sin 0 (1 - cos^2 0) /sin^2 0 ???
(sin 0/sin 0) (sin^2 0) / sin 0
= sin 0 = 0
or maybe you mean
sin 0 - (cos^2 0/sin 0)
0 - (1-sin^2 0)/sin 0
= -1/sin 0 - sin 0
= -1/0 undefined
(sin 0/sin 0) (sin^2 0) / sin 0
= sin 0 = 0
or maybe you mean
sin 0 - (cos^2 0/sin 0)
0 - (1-sin^2 0)/sin 0
= -1/sin 0 - sin 0
= -1/0 undefined
0 answers