Question

Sin 120 sin 240 sin 270 find the value

Answer 1

Answer:

1/2*-1/2*0

=0

Step-by-step explanation:

hope you got the answer guys

Answer 2

The value of $\sin120\sin 240\sin 270=\dfrac{3}{4}$

Step-by-step explanation:

We have,

$\sin120\sin 240\sin 270$

To find, the value of $\sin120\sin 240\sin 270=?$

∴ $\sin120\sin 240\sin 270$

$=\sin (180-60)\sin (270-30)\sin (360-90)$

[∵$\sin (180-A) =\sin A$ and $\sin (270-A)=-\cos A$]

$=\sin 60.-\cos 30\times (- 1)$

$=\dfrac{\sqrt{3}}{2}\times (-\dfrac{\sqrt{3}}{2})\times (-1)$

$=\dfrac{3}{4}$

Hence, the value of $\sin120\sin 240\sin 270=\dfrac{3}{4}$