Question

Sinπ/4 +sin13π/10=-1/2

Answer 1

Oh ::::: Yaar

You put the value only

So You see !!!!! Hahahaha lol

===============================

L.H.S

= sinπ/4 + sin13π/10

= - sin π /4 + sin π + 3π/ 10

= - sin π/4- sin 3π/10

= - sin π/4 - sin π 2 - 2π/ 10

= - sin π/4 - sin 2 π

= -1/2

Hence prove R.H.S