An algebra problem by apoorva garg
0 . 7 6 × 0 . 7 6 × 0 . 7 6 + 0 . 2 4 × 0 . 2 4 × 0 . 2 4 0 . 7 6 × 0 . 7 6 × 0 . 7 6 + 0 . 2 4 × 0 . 2 4 × 0 . 2 4 = ?
The answer is 1.
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4 solutions
Lol...very easy... ;)
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This question is one of the easiest ones I have ever encountered on Brilliant
Lolol very very simple.
yaa that's fine but there is the sign of + so we can't divide it directly
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No, we can, only if it's exactly the same
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yaa tha't what i am saying
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@Apoorva Garg – And for this particular question, the numerator and denominator is exactly the same, so we can do that
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@Hung Woei Neoh – I am getting stupifyed this way...
Cut the numerator and denominator,
0
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7
6
×
0
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7
6
×
0
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7
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0
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2
4
×
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2
4
×
0
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2
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7
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×
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7
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7
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2
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×
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2
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1
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0.76 * 0.76 * 0.76 + 0.24* 0.24* 0.24 / 0.76 * 0.76 * 0.76 + 0.24 * 0.24 * 0.24
=(0.76)to the power 3+(0.24)to the power 3/(0.76)to the power 3 +(0.24)to the power 3 =0.76+0.24/0.76+0.24 = 1
You can't cancel cube root like that directly to get one.
The numerator is exactly the same as the numerator. So the answer is 1.
0 . 7 6 × 0 . 7 6 × 0 . 7 6 + 0 . 2 4 × 0 . 2 4 × 0 . 2 4 0 . 7 6 × 0 . 7 6 × 0 . 7 6 + 0 . 2 4 × 0 . 2 4 × 0 . 2 4
Notice that the numerator and the denominator are exactly the same.
When a number is divided by itself, we will get a result of 1