2^x + 2^-x =5/2 pls I need d. ans
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A light-year is defined as the distance the light can cover in one year.
The light travels at speed of
, and one year converted into seconds is
So the distance covered by the light in one year is
And this is the distance that corresponds to one light-year.
The light travels at speed of
So the distance covered by the light in one year is
And this is the distance that corresponds to one light-year.