Question

The parametric representation of the following straight line
x-y +z = 5, x-2y + 3z = 3 is
(7+t)i - 2(1 +1)] + tk
(7+t)i + 2(1 +t)j + tk
(7+t)i + (1 +t)ſ + tk
(7 + t)i - (1 + t)j + tk​

Answer 1

Salty prohibition, the widow remarriage act was correct from a social point of view, but the Indians thought that it was an interference in their lifestyle and hence, they were dissatisfied. These are the social causes behind the struggle of 1857.

Answer 2

During the sunrise the sun is set close to the Earth's horizon, and therefore light travels a longer distance through the atmosphere of the Earth.

This is the reason sun appear reddish early in the morning. The astronaut will not observe this phenomenon on the moon's surface, because the moon has no atmosphere.