Makati and his friends rolled two fair number cubes 500 times and recorded the sum of the numbers shown on the cubes each time.
On 42 of the trails sum was 10. Which of these is fair number cubes are rolled
1 answer:
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The question is related to trigonometry and we have to use the formula of double angle .
Here we use double angle formula of tangent function which is
Given expression is
Comparing it with double angle formula, we will get x = 5
SO the required expression is equal to
So the answer is tan(10) .