MCQ
Find sum of series 2 + 3 + 5 + 7.
- A5
- B10
- C17
- Dinfinte
Solution:
Sum of the series 2 + 3 + 5 + 7 is finite because given series has finite number of terms.
The sum of given 4 terms i.e. 17.
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The mean deviation of the data 3, 10, 10, 4, 7, 10, 5 from the mean is:
The value of $\tan75^\circ-\cot75^\circ$ is equal to:
$2\sqrt{3}$
$2+\sqrt{3}$
$2-\sqrt{3}$
$1$