1.

The straight line \(\frac{x}{3}=\frac{y}{5}=\frac{z}{7}\) is perpendicular to which of the following planes ?(A) 3x + 7y + 5z = 15(B) 3x + 5y + 7z = 10(C) 7x + 5y + 3z = 10(D) x + y + z = 15

Answer»

Correct option is: (B) 3x + 5y + 7z = 10



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