![SOLVED: Find the exact value of the expression. sin (pi/20) cos (pi/5) + cos (pi/20) sin (pi/5) *Need help working out problem, answer is (1/sqrt 2)* SOLVED: Find the exact value of the expression. sin (pi/20) cos (pi/5) + cos (pi/20) sin (pi/5) *Need help working out problem, answer is (1/sqrt 2)*](https://cdn.numerade.com/ask_previews/605c91bc-3410-4ef6-842a-6a57b98ca297_large.jpg)
SOLVED: Find the exact value of the expression. sin (pi/20) cos (pi/5) + cos (pi/20) sin (pi/5) *Need help working out problem, answer is (1/sqrt 2)*
![साबित करें कि `sin. ( pi)/(5) sin . ( 2pi)/(5) sin . ( 3pi)/( 5) sin . ( 4pi)/( 5) =(5)/( 16)` - YouTube साबित करें कि `sin. ( pi)/(5) sin . ( 2pi)/(5) sin . ( 3pi)/( 5) sin . ( 4pi)/( 5) =(5)/( 16)` - YouTube](https://i.ytimg.com/vi/NKcps3NmVPw/mqdefault.jpg)
साबित करें कि `sin. ( pi)/(5) sin . ( 2pi)/(5) sin . ( 3pi)/( 5) sin . ( 4pi)/( 5) =(5)/( 16)` - YouTube
![साबित करें कि `sin. ( pi)/(5) sin . ( 2pi)/(5) sin . ( 3pi)/( 5) sin . ( 4pi)/( 5) =(5)/( 16)` - YouTube साबित करें कि `sin. ( pi)/(5) sin . ( 2pi)/(5) sin . ( 3pi)/( 5) sin . ( 4pi)/( 5) =(5)/( 16)` - YouTube](https://i.ytimg.com/vi/NKcps3NmVPw/maxresdefault.jpg)
साबित करें कि `sin. ( pi)/(5) sin . ( 2pi)/(5) sin . ( 3pi)/( 5) sin . ( 4pi)/( 5) =(5)/( 16)` - YouTube
![find the amplitude of sin pi by 5 plus I 1 - cos 5 by 5 - Maths - Relations and Functions - 13140947 | Meritnation.com find the amplitude of sin pi by 5 plus I 1 - cos 5 by 5 - Maths - Relations and Functions - 13140947 | Meritnation.com](https://s3mn.mnimgs.com/img/shared/content_ck_images/ck_5bc37dcb5fb65.png)
find the amplitude of sin pi by 5 plus I 1 - cos 5 by 5 - Maths - Relations and Functions - 13140947 | Meritnation.com
![prove that : sin pi/5 * sin 2pi/5 * sin 3pi/5 * sin 4pi/5 = 5/16 - Maths - Trigonometric Functions - 2777254 | Meritnation.com prove that : sin pi/5 * sin 2pi/5 * sin 3pi/5 * sin 4pi/5 = 5/16 - Maths - Trigonometric Functions - 2777254 | Meritnation.com](https://s3mn.mnimgs.com/img/shared/discuss_editlive/3021597/2012_08_08_15_01_34/mathmlequation8718178632575865291.png)