1.If the system of equations(λ−1)x+(λ−4)y+z=5(\lambda-1)x + (\lambda-4)y + z = 5(λ−1)x+(λ−4)y+z=5λx+(λ−1)y+(λ−4)z=7\lambda x + (\lambda-1)y + (\lambda-4)z = 7λx+(λ−1)y+(λ−4)z=7(λ+1)x+(λ+2)y−(λ+2)z=9(\lambda+1)x + (\lambda+2)y - (\lambda+2)z = 9(λ+1)x+(λ+2)y−(λ+2)z=9has infinitely many solutions, then λ2+λ\lambda^2 + \lambdaλ2+λ is equal to:a.666b.101010c.202020d.121212Login to continueOnly logged in users canattempt or see the solution.
