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Trig-Identities Part 1-ratios
供稿人: Nelson
(原作者: Tuan)
sinθ =

Type the trig ratios.

Use  o=opposite

       a=adjacent

       h=hypotenuese

cosθ =

Type the trig ratios.

Use  o=opposite

       a=adjacent

       h=hypotenuese

tanθ =

Type the trig ratios.

Use  o=opposite

       a=adjacent

       h=hypotenuese

cscθ =

Type the trig ratios.

Use  o=opposite

       a=adjacent

       h=hypotenuese

secθ =

Type the trig ratios.

Use  o=opposite

       a=adjacent

       h=hypotenuese

cotθ =

Type the trig ratios.

Use  o=opposite

       a=adjacent

       h=hypotenuese

Type only the trig abbreviation, theta is not necessary

Type the reciprocal trig ratios.

cscθ =
1
Type only the trig abbreviation, theta is not necessary

Type the reciprocal trig ratios.

secθ =
1
Type only the trig abbreviation, theta is not necessary

Type the reciprocal trig ratios.

cotθ =
1
2

Complete the Identity

θ
+
2
θ
=1

Complete the Identity

+
2
θ
=sec
2
θ

Complete the Identity

+
2
θ
=csc
2
θ

Complete the Identity

 

sinθ
cosθ
=
θ

Complete the Identity

 

cosθ
sinθ
=
θ

Type the special angle trig ratios.

sin45=
Type
sr

for square root.

Hit TAB & ENTER

if denominator is 1

Type the special angle trig ratios.

cos45=
Type
sr

for square root.

Hit TAB & ENTER

if denominator is 1

Type the special angle trig ratios.

tan45=
Type
sr

for square root.

Hit TAB & ENTER

if denominator is 1

Type the special angle trig ratios.

sin30=
Type
sr

for square root.

Hit TAB & ENTER

if denominator is 1

Type the special angle trig ratios.

cos30=
Type
sr

for square root.

Hit TAB & ENTER

if denominator is 1

Type the special angle trig ratios.

tan30=
Type
sr

for square root.

Hit TAB & ENTER

if denominator is 1

Type the special angle trig ratios.

sin60=
Type
sr

for square root.

Hit TAB & ENTER

if denominator is 1

Type the special angle trig ratios.

cos60=
Type
sr

for square root.

Hit TAB & ENTER

if denominator is 1

Type the special angle trig ratios.

tan60=
Type
sr

for square root.

Hit TAB & ENTER

if denominator is 1

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