Jul 26, 2020 · Answer: This question can be solved using the unit circle. 240º is in the 3rd quadrant, so we subtract 180 to get the reference angle: 240–180= 60º. Because 240º is in the …

May 25, 2019 · How can find the value of sin 2pi/7 + sin 4pi/7 +sin 8pi/7? Get the answers you need, now!

Jun 18, 2022 · Click here 👆 to get an answer to your question ️ find the principal value of following Sin inverse sin 4pi by 5

Jul 28, 2018 · Concept introduction:This question is based on the identification of the current flowing across a terminal with total charge 5t sin4pie t. Charge is calculated …

Jan 13, 2017 · We have to prove that sin (π/5) sin (2π/5) sin (3π/5) sin (4π/5) = 5/16 Proof : LHS = sin (π/5) sin (2π/5) sin (3π/5) sin (4π/5)= sin (π/5) sin (2π/5) sin (π - 2π/5) sin (π…

Jul 16, 2018 · Find an answer to your question sin^4 π/16 + sin^4 3π/16 + sin^4 5π/16 + sin^4 7π/16 = 3/2

Mar 31, 2020 · Answer:According to the principle of superpositon each wave produces its distrubance independent of the other and the resultant distrubance is eqal to the vector sum of …

Oct 26, 2020 · The square of a number is 56 more than the number itself. What is the number the speeds of two trains are in ratio 4:5

Aug 26, 2016 · Prove that : sin pi/5 * sin 2pi/5 * sin 3pi/5 * sin 4pi/5 = 5/16 Get the answers you need, now!

Feb 6, 2016 · Lets take a = 2pi/7 7a =2pi sin4a = sin (2pi-3a) sin4a = -sin3a 2sin2a.cos2a = 4sin3 (a) -3sina 4sin a.cos a (1-2sin2 (a)) = sin a (4sin2 (a) - 3) 4cos a (1-2sin2 (a)) = 4sin2 (a) -3 On …