Question

what is the value of sin (5pi/12)​

Answer 1

Hope this will help yaa buddy...

Say thankx and mark as brainliest if this helped you....

Thank you...

:)

Answer 2

Answer:

0.9659258

Step-by-step explanation:

Formula Used :

i) sin(90 - Ф) = cos(Ф)

ii) cos (2Ф) = 2cos^2(Ф) - 1

We can write,

$5\pi/12 = \pi/2 - \pi/12\\\implies sin(5\pi/12) = sin(\pi/2 - \pi/12) = cos (\pi/12)$

$cos (\pi/6) = \frac{\sqrt{3} }{2} = 2 cos^2(\pi/12) -1\\\implies \sqrt{\frac{ \sqrt{3}+2 }{4}}} = cos(\pi/12) \approx 0.9659258$

#SPJ2