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lbvjy [14]
3 years ago
12

Differentiate f(x)= square root of x times sin x

Mathematics
2 answers:
777dan777 [17]3 years ago
8 0
Here is the answer of the given mathematical problem above:
In order to differentiate f(x)= square root of x times sin x, you do this.
Use the product rule so that f′(x)=f(x)g′(x)+f′(x)g(x) when f(x)=x√ and<span>g(x)=sin(x)
</span>Next, solve for the derivative of sqrt(x) and sinx first and then plug into the equation for the product rule.
The result would be <span>the derivative of sqrt(x) is 1/2x^-1/2 and </span><span>derivative of sinx is cosx.</span>
zysi [14]3 years ago
3 0
Hello,

y= \sqrt{ x*sin(x) } \\&#10;&#10;y'= \dfrac{sin(x)+x*cos(x)}{2 \sqrt{x*sin(x)} }
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PLEASE HELP IMMEDIATELY!! will MARK BRAINLIEST AND GIVE 16 POINTS! (multiple choice but please try to show steps)
Degger [83]

Answer:

1. The values of angle C to the nearest degree are 80° , 100° ⇒ (A)

2. csc Ф = -(√13)/2 ⇒ (C)

3. tan Ф = - (√21)/2 ⇒ (A)

Step-by-step explanation:

* Lets explain how to solve the problem

1.

∵ The measure of angle C is ⇒ 0° ≤ m∠C ≤ 180°

∴ ∠C lies in the first quadrant or in the second quadrant

∴ m∠C = Ф <em>OR  </em>m∠C = 180 - Ф, where Ф is an acute angle

∵ sin∠C = 0.9848

∴ sin Ф =  0.9848

- Use the inverse function sin^-1 to find Ф

∴ Ф = sin^-1 0.9848

∴ Ф ≅ 80°

- Lets find ∠C

∵ m∠C = Ф

∴ m∠C = 80°

∵ m∠C = 180° - Ф

∴ m∠C = 180 - 80 = 100°

* The values of angle C to the nearest degree are 80° , 100°

2.

- The terminal arm of angle Ф is in  quadrant IV

∵ In quadrant IV sin Ф , csc Ф , tan Ф , cot Ф are negative values

∵ In quadrant IV cos Ф , sec Ф are positive values

∵ cos Ф = 3/√13

∵ csc Ф = 1/(sin Ф)

- Lets use the identity sin²Ф + cos²Ф = 1 to find sin Ф

∵ sin²Ф + (3/√13)² = 1

∴ sin²Ф + 9/13 = 1 ⇒ subtract 9/13 from both sides

∴ sin²Ф = 4/13 ⇒ take √ for both sides

∵ sin Ф = ± 2/√13

- The value of the sin the IV quadrant is negative

∴ sin Ф = - 2/√13

∵ csc Ф = 1/sin Ф

∴ csc Ф = -(√13)/2

3.

∵ sec Ф = -5/2 and sin Ф > 0

∵ sec Ф = 1/cos Ф

- The value of cos Ф is negative and the value of sin Ф is positive,

 then Ф lies in the second quadrant

∵ In the second quadrant cos Ф , sec Ф , tan Ф , cot Ф are negative

  values but sin Ф and csc Ф are positive values

- Lets use the identity tan²Ф + 1 = sec²Ф to find tan Ф

∵ sec Ф = -5/2

∵ tan²Ф + 1 = sec²Ф

∴ tan²Ф + 1 = (-5/2)²

∴ tan²Ф + 1 = 25/4 ⇒ subtract 1 from both sides

∴ tan²Ф = 21/4 ⇒ take √ for both sides

∴ tan Ф = ± √21/2

∵ Ф lies in the second quadrant

∴ tan Ф = - (√21)/2

4 0
3 years ago
Dedrick received $43 from his last birthday that he added to his piggy- bank already containing $52.60. He emptied it out so tha
mezya [45]
Answer= $58.01

52.60
+43.00
95. 60. 95.60 - 37. 59= 58. 01

but, TECHNICALLY, there isn't anything in the piggy bank if he emptied it out.
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3 years ago
Alicia randomly selects one number from the list of numbers below.
HACTEHA [7]

Answer:

80% or 4/5

Step-by-step explanation:

There are five numbers and four of the numbers are positive which means you'll have 4 out of 5 chance getting a positive number, which is equivalent to 80%

4 0
3 years ago
Read 2 more answers
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babunello [35]

Answer:

Step-by-step explanation:

It would be point B. Since y-intercept is when the x is at 0, the answer would be point B.

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9/16=27/x proportions?
tino4ka555 [31]
I think is
9 + x = 16 + 27
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