If one of the angles α, β, γ is \;{π}/{36} then the \cos 12 α+\cos 12 β+\cos 12 γ=

Test Index

JEE Advanced 2020 Full Test 1 Paper 2

Paragraph for Question Nos. 53 and 54

If cos‌α+cos‌β+cos‌γ=0=sin‌α+sin‌β+sin‌γ and δ=‌

α+β+γ

. The difference of any two of the angles α,β,γ is equivalent to ‌

2π

. Then

Question : 54

Total: 54

then the cos‌12‌α+cos‌12‌β+cos‌12‌γ=

Go to Question:

Prev Question