Yes it is a perfect square!!
Answer:
The value of given expression is .
Step-by-step explanation:
The given expression is
The trigonometric ratios are not defined for .
can be split into .
Using the addition formula
We know that, and
lies in third quadrant, by using reference angle properties,
Therefore the value of given expression is .
The answer to A is 4.6
The answer to B is 3.16
The answer is 286/52=5.5 hours
One hour is equivalent to 60 minutes and 1 minute is equivalent to 60 seconds, therefore:
60 minutes/hr * 60 seconds/minute = 3600 seconds/hr
At a rate of 186000 miles per second, light will travel 186000*3600 = 669,600,000 miles, which can be restated as 6.7*10^8 miles