SOLUTION: If {{{sin A =4/5}}}, find {{{tan (a/2)}}}
Algebra
->
Trigonometry-basics
-> SOLUTION: If {{{sin A =4/5}}}, find {{{tan (a/2)}}}
Log On
Algebra: Trigonometry
Section
Solvers
Solvers
Lessons
Lessons
Answers archive
Answers
Click here to see ALL problems on Trigonometry-basics
Question 882703
:
If
, find
Answer by
Fombitz(32388)
(
Show Source
):
You can
put this solution on YOUR website!
So then,
and
.
.
.
By identity,
So,
and