(sinx)
/
(
[
sin^2x/
sinx]
+
[
1/
sinx]
)
=
sinx
(
sin^2x)
/
(
[
sinxcosx/
sin^2x]
+
[
sin^2x/
secxsinx]
)
=
1
(
cos^2x)
/
(
[
cosx+
secx]
/
[
secxsinx]
)
=
cosx
(
sin^2x)
/
(
secxsinx/
sinx)
=
sinxcosx
secxsinx*
sinxcosx*
cos^2x*
cox=
sin^2x
sinxcosx*
sin^2x*