Question

17. What is the L.C.M. of 3ab, 9a²c, 12a²c2
? (a) 36 a²b²c (b) 36 abc (c) 36 a²bc2 (d) 9 abc .​

Answer 1

Option (c) 36a²bc²

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Answer 2

Answer:

c) 36 a²bc²

Explaination:

I will give you a short trick to find lcm of variables , It As follows

1)Take the same variable like 'a' highest power of a is 2 so take it as a² Do such with all which gives b,c².

2) Now calculate lcm of number.

3) Multiply all

And it's done

Here the answer comes 36a²bc²

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