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" If " f(x) = |{:(cos(x+alpha),,cos(x+be...

`" If " f(x) = |{:(cos(x+alpha),,cos(x+beta),,cos(x+gamma)),(sin(x+alpha) ,,sin(x+beta),,sin(x+gamma)),(sin(beta-gamma),, sin(gamma-alpha),,sin (alpha-beta)):}|` and
`f(0)=2 ` theb find the value of `Sigma_(r=1)^(30) | f(r )|`.

Text Solution

Verified by Experts

We have f(x)=0
So f(x) is constant
`:. |f(1)|+|f(2)|+….+|f(30)|=60`
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