If `cos^(-1)lambda+cos^(-1)mu+cos^(-1)gamma=3pi,` then find the value of `lambdamu+mugamma+gammalambda`

If cos^(-1)lambda+cos^(-1)mu+cos^(-1)gamma=3 pi, then find the value of lambda mu+mu gamma+gamma lambda

If cos^(-1)lambda+cos^(-1)mu+cos^(-1)gamma=3pi, then find the value of lambdamu+mulambdadot

If cos^(-1)lambdacos^(-1)mu+cos^(-1)gamma=3pi, then find the value of lambdamu+mulambdadot

If cos^(-1) lamda+cos^(-1)mu +cos^(-1) gamma = 3pi , then find the value of lamdamu + mugamma + gammalamda

If cos^(-1)lambda+cos^(-1)mu+cos^(-1)gamma=3pi, then find the value of λμ+μγ+γλ

If cos^(-1) lamda + cos^(-1) mu + cos^(-1) gamma = 3pi , then find the value of lamda mu + mu gamma + gamma lamda

If cos^(-1) lamda + cos^(-1) mu + cos^(-1) gamma = 3pi , then find the value of lamda mu + mu gamma + gamma lamda

If cos^-1 lambda + cos^-1 mu + cos^-1 gamma = 3 pi , then find the value of lambda mu + mu gamma + gamma lambda

Matching the items of Column-I with the items Column-II {:("Column-I", "Column-II"), ("A) If "cos^(-1)lambda+cos^(-1)mu+cos^(-1)gamma=3pi" then "lambdamu+mugamma+gammalambda" is","p) "2n), ("B) If "sum_(i=1)^(10)cos^(-1)x=0" then "sum_(i=1)^(10)x_(i)" is", "q) "(sin^(-1)x-pi/6)), ("C) If "sum_(i=1)^(2n)sin^(-1)x_(i)=npi" then "sum_(i=1)^(2n)x_(i)" is", "r) "10),("D) The value of "sin^(-1){sqrt(3)/2x-1/2sqrt(1-x^(2))}"," (-1/2 le x le 1/2)" is", "s) "3):}

If Cos^(-1)lamda+Cos^(-1)mu+Cos^(-1)V=3pi then lamda mu+muV+Vlamda=