Math, asked by naresh123516, 9 months ago

prove that:
cos(2π/7)+cos(4π/7)+cos(8π/7)=-1/2​

Answers

Answered by callmeAAYUSH
0

Step-by-step explanation:

Electrical flux has SI units of volt meters (V m), or, equivalently, newton meters squared per coulomb (N m2 C−1). Thus, the SI base units of electric flux are kg. m. s.

Answered by byribalaraju8
2

Answer:

Step-by-step explanation:

Hope it's helps you

Attachments:
Previous Question
Next Question
Similar questions
English, 5 months ago
At five o’clock, I _______(meet) with the management about my raise. (FutureProgressive)​...
Math, 5 months ago
Sum of 2 numbers is 12 and their difference is 2. Find the two numbers. ​
English, 5 months ago
A few people were out. They quickened their steps. (Combine the two sentences into one sentence) *​...
Environmental Sciences, 9 months ago
what is naibourhood?​
Science, 9 months ago
absorption is an important stage of Nutrition. why is absorption important? which process must take place before absorption? explain.​
Math, 11 months ago
the product of two number is minus 5 whole -5 by 12 .If one number is 1 whole 2 by 13 find the other number...
English, 11 months ago
Rearrange this word- KDKCU.
Hindi, 11 months ago
Raat may dar tak baarish hoti rhi (pudparichay lilhiye)...