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3 years ago

7

Solve cot(3x)= -squareroot 3 / 3.

1 answer:

miss Akunina [59]3 years ago

5 0

Cotangent is the inverse of tangent function. Hence, in this case, the equation is converted to tan 3x = -1/ squareroot 3 / 3 = -squareroot 3using a calculator in the radians mode, 3x is equal to -pi/3. This means x should be equal to -pi/18.

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3 years ago

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Step-by-step explanation:

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Read 2 more answers

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d)Q(9,10) is true

Step-by-step explanation:

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a)

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b)

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That is $x=-5, y=2$

Here $-5$ that is $x$ this condition is satisfied.

Then

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This is similar to the truth value of part (a).

Since in both $x$ satisfied and $x^{2} >y^{2}$ for both the points.

c)

if $Q(x,y)=Q(3,8)$ that is $x=3$ and $y=8$

Here $3$ this satisfies the condition $x$ .

Then $3^{2}$

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Hence $Q(3,8)$ exists and it is true.

d)

Assume $Q(x,y)=Q(9,10)$

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Then $9^{2}$

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Thus, $Q(9,10)$ point exists and it is true. This satisfies the same values as in part (c)

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