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	If `xcostheta=ycos(theta+(2pi)/3)=z cos(theta+(4pi)/3)` , prove that `x y+y z+z x=0.` (Doubtnut) View
	If x cos θ = y cos (θ + 2π/3 ) = z cos ( θ + 4π/3), then find the value of xy + yz + zx #iitjee (BKMathur Maths Delhi) View
	If `xcostheta=ycos(theta+(2pi)/3)=2.cos(theta+(4pi)/3)` ,then evaluate `xy+yz+zx`. (Doubtnut) View
$Download Lagu If \( x \cos \theta=y \cos \left(\theta+\frac{2 \pi}{3}\right)=z \cos \left(\theta+\frac{4 \pi}{...$	If \( x \cos \theta=y \cos \left(\theta+\frac{2 \pi}{3}\right)=z \cos \left(\theta+\frac{4 \pi}{... (PW Solutions) View
	यदि x cos theta = y cos (theta+(2pi)/3)=zcos(theta+(4pi)/3) हो , तो1/x + 1/y + 1/z कामान है \| 12... (Doubtnut) View
	If x cos θ = y cos(θ+ 2π/3)= zcos(θ+ 4π/3), prove that xy + yz+zx = 0. (padhai.Online) View
	If x cosθ = y cos (θ+2π/3) = z cos(θ+4π/3), then write the value of 1/x+1/y+1/z. rd Sharma vsaq 11 (Fountain of Mathematics) View
	यदि `x cos theta = y cos(theta + ( 2pi)/(3)) =z cos (theta + ( 4pi)/(3)) ` साबित करें कि `xy +yz+ (Doubtnut) View
	If x.Cosθ=y.Cos(θ+2π/3)=z.Cos(θ+4π/3) Find value of 1/x+1/y+1/z (SREP Govinda Rao Classes) View
	if xcosθ=ycos(θ+2π/3)=zcos(θ+4π/3),then find the value of xy+yz+zx., By ND Sir (Experience Institute pol.sci.) View