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OLEGan [10]
3 years ago
13

What is the LEast common multiple?

Mathematics
2 answers:
Mrrafil [7]3 years ago
6 0
The least common multiple is  21. I got this by going through the multiples of the larger number, with the first one being 21. Becuase 21 times 1 is 21 and 7 times 3 is 21 so 21 is the LCM.
belka [17]3 years ago
4 0
The least common multiple (LCM) of a set of numbers is the lowest value that all of the numbers can be divided by and have a result of a whole number.

In this case, the least common multiple is 21 because 21/7=3 and 21/21=1.
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<h3><u>Answer</u> :</h3>

We know that,

\dag\bf\:sin^2A=\dfrac{1-cos2A}{2}

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<u>_</u><u>_</u><u>_</u><u>_</u><u>_</u><u>_</u><u>_</u><u>_</u><u>_</u><u>_</u><u>_</u><u>_</u><u>_</u><u>_</u><u>_</u><u>_</u><u>_</u><u>_</u><u>_</u><u>_</u><u>_</u><u>_</u><u>_</u><u>_</u><u>_</u><u>_</u><u>_</u><u>_</u><u>_</u><u>_</u><u>_</u><u>_</u><u>_</u><u>_</u><u>_</u>

<u>Now, Let's solve</u> !

\leadsto\:\bf\dfrac{sin^2A-sin^2B}{sinA\:cosA-sinB\:cosB}

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\leadsto\:\sf\dfrac{sin(A+B)}{cos(A+B)}

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