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3 years ago

7

Integrate 2x/sqrt(1-x^2) dx from 0 to ½.

1 answer:

8_murik_8 [283]3 years ago

7 0

A short-cut to accurately evaluate the given expression above is using a scientific calculator where one can include integrals and evaluate using limits. In this case, using a calculator, the answer is equal to 0.2679. One can verify this by integrating truly letting 1-x^2 as u and use its du to be substituted in the numerator

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Marina CMI [18]

Answer:

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Step-by-step explanation:

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3 years ago

. The selling price of 15 articles is Rs 1,500 at a gain of 8%. Find C.P of each article<br>

Andru [333]

<u>Rs. 92.59</u> is each article's CP

Step-by-step Explanation:-

As per conditions given,

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2 years ago

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2 years ago

The coordinates of Point A are (6,3). Point B is a reflection of Point A across the y axis. In which Quadrant is point B located

Ksju [112]

point B is located in quadrant II (option B)

Explanation:

Point A: (6, 3) = (x, y)

reflection of point A across the y axis:

The x coordinate will be negative and the y coordinate will remain the same

reflection of point A across the y axis = (-6, 3)

Attaching the graph showing the point after reflection:

Since point B is the reflection of point A.

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1 year ago

What is the difference?

Ganezh [65]

Answer:

$\frac{x^2+4x-1}{x(x+2)}$

Step-by-step explanation:

Given

$\frac{x+5}{x+2}$ - $\frac{x+1}{x^2+2x}$ ← factor denominator

= $\frac{x+5}{x+2}$ - $\frac{x+1}{x(x+2)}$

We require the fractions to have a common denominator.

Multiply numerator/denominator of first fraction by x

= $\frac{x(x+5)}{x(x+2)}$ - $\frac{x+1}{x(x+2)}$

Subtract terms on numerator leaving the common denominator

= $\frac{x^2+5x-x-1}{x(x+2)}$

= $\frac{x^2+4x-1}{x(x+2)}$

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3 years ago