How do you express $sin(pi/ 4 ) * sin( ( 4 pi) / 3 )$ without using products of trigonometric functions?

Question

How do you express $sin(pi/ 4 ) * sin( ( 4 pi) / 3 )$ without using products of trigonometric functions?

1 Answer

Impact of this question

2329 views around the world

You can reuse this answer
Creative Commons License

Answer 1 · 2018-03-13T23:28:25

$-sqrt6/4$

Explanation:

$P = sin (pi/4).sin ((4pi)/3)$ =
Trig table and unit circle gives -->
$sin(pi/4) = sqrt2/2$ , and $sin ((4pi)/3) = - sin (pi/3) = - sqrt3/2$
Therefor -->
$P = (sqrt2/2)(- sqrt3/2) = - sqrt6/4$

Science

Math

Humanities

... and beyond

How do you express $sin(pi/ 4 ) * sin( ( 4 pi) / 3 )$ without using products of trigonometric functions?

1 Answer

Explanation:

Related questions

Impact of this question

Science

Math

Humanities

... and beyond

How do you express sin(pi/ 4 ) * sin( ( 4 pi) / 3 ) sin(pi/ 4 ) * sin( ( 4 pi) / 3 ) without using products of trigonometric functions?

1 Answer

Explanation:

Related questions

Impact of this question

How do you express $sin(pi/ 4 ) * sin( ( 4 pi) / 3 )$ without using products of trigonometric functions?