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Veseljchak [2.6K]
3 years ago
10

What is equivalent to i4?

Mathematics
1 answer:
bezimeni [28]3 years ago
4 0
Hello : 
 <span>i4 = i²× i² =(-1)(-1) = 1  because : i² = -1</span>
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Neelam's daily income is ₹ 800. Her daily savings amount is ₹100. What is the ratio of her SAVINGS to her EXPENDITURE?
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Answer: ratio of her SAVINGS to her EXPENDITURE=1:7

Step-by-step explanation:

Neelam's daily income = ₹ 800

Neelam's daily savings amount = ₹100

Therefore  her expenditure will be Daily income - Daily savings

= ₹ 800- ₹ 100= ₹ 700

 ratio of her SAVINGS to her EXPENDITURE

= 100: 700

=1:7

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