3 years ago

Which value is a solution for the equation cot x/2 =1

Mathematics

1 answer:

Alborosie3 years ago

3 0

Step-by-step explanation:

cot(x/2) = 1

Take inverse of both sides.

tan(x/2) = 1

Solve for x/2.

x/2 = π/4 + kπ

Solve for x.

x = π/2 + 2kπ

Possible values for x are π/2, 5π/2, 9π/2, etc.

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Rewrite the equation by completing the square.

dlinn [17]

Answer:

(x + 1/2)^2 = 289/4

Step-by-step explanation:

x^2+x-72=0

Write like this:

(x + ___)^2 = ___

put 72 on other side

x^2 + x = 72

x^ + x + (1/4) = 72 + (1/4)

(x + 1/2)^2 = 289/4

x + (1/2) = 17/2

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3 years ago

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Step-by-step explanation:

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aivan3 [116]

Answer:

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Step-by-step explanation:

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4 years ago

X to the power of two plus five x plus 4

Iteru [2.4K]

Answer: (x + 1) ( x + 4)

Step-by-step explanation:

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3 years ago

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Mr Tong had some money. After giving $1300 to each 5 of his children, he had $450 left. How much money did he have at first

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Answer:

Step-by-step explanation:

money given to children=1300x5

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