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____ [38]
3 years ago
10

Limit as x approaches 0 of (sin^2x)/x

Mathematics
1 answer:
melisa1 [442]3 years ago
5 0

Answer:

<h3>0</h3>

Step-by-step explanation:

Given the expression

\lim_{x \to \ 0} \frac{sin^2x}{x}

Substitute the value of x in the function

= \frac{sin ^2(0)}{0}\\= 0/0 (indeterminate) \\

Apply l'hospital rule

\lim_{x \to \ 0} \frac{d/dx(sin^2x)}{d/dx(x)}  \\=  \lim_{x \to \ 0} \frac{(2sinxcosx)}{1}  \\

Substitute the value of x

= 2 sin(0)cos(0)

= 2 * 0 * 1

= 0

Hence the limit of the function is 0

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Drug B has is to be given 10 mg/kg/day in 2 divided doses. The patient weighs 220 pounds. The pharmacy has 250 mg capsules on ha
Rasek [7]

Answer:

a) 996.6 mg

b) 498.96 mg

c) 4

d) 2

Step-by-step explanation:

Given:

Dose to be given = 10 mg/kg/day

Number of dose to be divided = 2

weight of the patient = 220 pounds

now,

1 pound = 0.453 kg

thus,

weight of the patient = 220 × 0.4536 = 99.792 kg

a) Amount of Drug patient should receive per day = dose × weight of patient

or

Amount of Drug patient should receive per day = 10 × 99.792

or

Amount of Drug patient should receive per day = 997.92 mg

b) Now, the dose is divided in to 2 per day

thus,

The amount of drug received per dose = \frac{\textup{Drug received per day}}{\textup{Number of dose per day}}

or

The amount of drug received per dose = \frac{\textup{997.92 mg}}{\textup{2}}

or

The amount of drug received per dose = 498.96 mg

c) weight of capsule = 250 mg

Thus,

capsules received by patient per day = \frac{\textup{Dose per day in mg}}{\textup{weight of capsule in mg}}  

or

capsules received by patient per day = \frac{\textup{997.92}}{\textup{250}}  

or

capsules received by patient per day = 3.99168 ≈ 4

d) Capsules to be received per dose = \frac{\textup{Amount of drug per dose in mg}}{\textup{weight of capsule in mg}}  

or

capsules received by patient per dose = \frac{\textup{498.86}}{\textup{250}}  

or

capsules received by patient per dose = 1.99544 ≈ 2

7 0
3 years ago
On a bicycle Jack can travel 20 miles in 4 hours. How long will it take him to travel 75 miles?? Please help me
valentinak56 [21]
Make a proportion 20 miles/4 hours= 75miles/x. cross multiply gives you 20x=300. this will give you x = 15 hours 
3 0
4 years ago
PLS HELP ASAP, I need it in 10 mins. I GIVE 15 PTS !!!! if v1 = (3,-4) and v2 = (2,6) then v1*v2 is equal to which of the follow
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It is C. Good luck on ur test!!!!
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Pani-rosa [81]

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Step-by-step explanation:

7 0
3 years ago
PLEASE HELP...
djverab [1.8K]

The area of the given rectangle is of the standard form option 1.2x^{2} + 3x - 20.

Step-by-step explanation:

Step 1:

The parameters needed to determine the area of a rectangle are the base length and the width.

The base length of this rectangle is 2x-5 units while its width is x+4 units.

The area of a rectangle is determined by multiplying the base length with the width.

Step 2:

The area of the rectangle = (length)(width).

Here length is 2x-5 units and the width is x+4 units.

The area of the rectangle= (2x-5)(x+4) = 2x^{2} + 8x -5x-20 = 2x^{2} + 3x - 20.

So the area of the given rectangle is of the standard form 2x^{2} + 3x - 20 which is the first option.

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4 years ago
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