A straight line passes through the point (3, 2) and is perpendicular to the straight line x+ y = 3 and is perpendicular to the straight line x + y = 3. Find its equation

x + y + 1 = 0

x – y – 1 = 0

x – y + 1 = 0

x + y – 1 = 0

Correct Answer : B

A metallic cuboid has dimensions of 9cm × 10cm × 11cm. How many spherical balls of radius 0.3 cm, can be drawn from this cuboid?

simplifies to

If ax +by + c = 0 and dx + ey + f = 0 represent the same straight line then which of following is necessarily satisfied?