Posted by
**Anonymous** on
.

How do you solve for these identities:

1-sin^2è/cosè= cosè

sin^4è-cos^4è=2sin^2è-1

Sunday

March 26, 2017
Posted by
**Anonymous** on
.

How do you solve for these identities:

1-sin^2è/cosè= cosè

sin^4è-cos^4è=2sin^2è-1

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