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2 years ago

What is the square root of -1? –i i –1 1

Mathematics

2 answers:

alexandr402 [8]2 years ago

7 0

The answer is going to be i

ArbitrLikvidat [17]2 years ago

6 0

Answer:

squareroot (-1) = i

Step-by-step explanation:

we cannot find square root (-1) manually

square root (-1) is imaginary

Every square root (positive number) has to values , one is positive and Tehran one is negative

square root (negative number ) is imaginary

square root (-1) is 'i'

i = square root (-1)

i^2 = -1

the value of i^3 = -i

the value of i^4 = 1

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x = # of hours

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3 years ago

A standard deck of cards contains 52 cards. The cards have 4 different suits: clubs, diamonds, hearts, and spades. For each suit

Taya2010 [7]

Answer:

a. 108336, b. 480200

Step-by-step explanation:

a. No. of ace cards = 4

No. of non ace cards= 48

We draw 5 cards

So,

No. of ways of 2 aces = C(4,2) C(48,3)

No. of ways of 3 aces = C(4,3) C(48,2)

No. of ways of 4 aces = C(4,4) C(48,1)

Hence

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Hence

No. of ways of choosing king of diamonds, queen of hearts or both = C(52,5) – C(50,5)

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2 years ago

What is the counterexample for the city of Portland is in Oregon

Dmitry_Shevchenko [17]

A counter example disproves a statement.

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2 years ago

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-BARSIC- [3]

Answer:

12/(7-4) + 5 * 3 = 19

Step-by-step explanation:

Given

Untrue Expression: 12 ( 7 − 4 ) + 5 3 = 19

Signs: +−×÷

Required

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To solve this, the trial and error method will be adopted.

The trial and error method involves trying series of sign combinations in the given expression; whichever works is the right answer.

So, after few attempts the following makes the equation true

12/(7-4) + 5 * 3 = 19

To check if it's true or not; we simply expand the expression on the left hand side. This gives

12/3 + 5 * 3 = 19

4 + 5 * 3 = 19

4 + 15 = 19

19 = 19.

Hence, the sign combinations used in 12/(7-4) + 5 * 3 = 19 is correct.

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2 years ago

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