Maths-

General

Easy

Question

The sum of the series $fraction numerator 1 over denominator 2.3 end fraction plus fraction numerator 1 over denominator 4.5 end fraction plus fraction numerator 1 over denominator 6.7 end fraction plus... equals$

$\log (2 / e)$
$\log (e / 2)$
2/e
e/2

The correct answer is: $log invisible function application left parenthesis e divided by 2 right parenthesis$

$fraction numerator 1 over denominator 2.3 end fraction plus fraction numerator 1 over denominator 4.5 end fraction plus fraction numerator 1 over denominator 6.7 end fraction plus.....$
$equals open parentheses fraction numerator 1 over denominator 2 end fraction minus fraction numerator 1 over denominator 3 end fraction close parentheses plus open parentheses fraction numerator 1 over denominator 4 end fraction minus fraction numerator 1 over denominator 5 end fraction close parentheses plus open parentheses fraction numerator 1 over denominator 6 end fraction minus fraction numerator 1 over denominator 7 end fraction close parentheses plus...... infinity equals 1 minus log subscript e end subscript invisible function application 2$
$equals log subscript e end subscript invisible function application e minus log subscript e end subscript invisible function application 2 equals log invisible function application open parentheses fraction numerator e over denominator 2 end fraction close parentheses$

$fraction numerator 1 over denominator 5 end fraction plus fraction numerator 1 over denominator 2 end fraction. fraction numerator 1 over denominator 5 to the power of 2 end exponent end fraction plus fraction numerator 1 over denominator 3 end fraction. fraction numerator 1 over denominator 5 to the power of 3 end exponent end fraction plus..... infinity equals$

Maths-General

General

Physics-

White light is incident normally on a thin film which has n = 1.5 and a thickness of 5000 Å. For what wavelengths in the visible spectrum (4000 – 7000 Å) will the intensity of the reflected light be a maximum?

Physics-General

General

Biology

The sum of 730 + 450 using front – end estimation is______.

Front-end estimation means rounding off a number to the nearest place value of the leading digit of the number.

The sum of 730 + 450 using front – end estimation is______.

Maths-General

Front-end estimation means rounding off a number to the nearest place value of the leading digit of the number.

General

Maths-Video

Round the number 5432 to the nearest hundred.

For rounding off to the nearest hundred, we can also look at the number formed by the tens place digit and one place digit. If the number formed is less than 50,we round down and if the number is 50 or more we round up.

Round the number 5432 to the nearest hundred.

Maths-General

General

GeneralVideo

Estimate 275 + 238 to nearest hundred.

GeneralGeneral

General

Mathematics

What is the value of 20/100?

MathematicsGeneral

General

Biology

Identify structures A to D –

BiologyGeneral

General

botany-

An ellipse slides between two perpendicular straight lines $x equals 0 blank a n d blank Y equals 0$ then, locus of its foci is

botany-General

General

botany-

If there are exactly two points on the ellipse $fraction numerator x to the power of 2 end exponent over denominator a to the power of 2 end exponent end fraction plus fraction numerator y to the power of 2 end exponent over denominator b to the power of 2 end exponent end fraction equals 1$ whose distance from its centre is same and is equal to $square root of fraction numerator a to the power of 2 end exponent plus 2 b to the power of 2 end exponent over denominator 2 end fraction end root$ then eccentricity of the ellipse is

botany-General

General

botany-

Tangent at any point of ellipse $9 x to the power of 2 end exponent plus 16 y to the power of 2 end exponent minus 144 equals 0$ is drawn. Eccentric
angle of ‘ P’ is $theta equals fraction numerator 1 over denominator 2 end fraction s i n to the power of negative 1 end exponent invisible function application open parentheses fraction numerator 1 over denominator 7 end fraction close parentheses$ If is the foot of perpendicular from centre $blank ´ O blank ´$ to this tangent then $angle P O N$ is

botany-General

General

botany-

If the curve $x to the power of 2 end exponent plus 3 y to the power of 2 end exponent equals 9$ subtends as obtuse angle at the point $left parenthesis 2 alpha comma alpha right parenthesis left parenthesis left parenthesis alpha element of text int end text text eger end text text end text right parenthesis$ , $blank left parenthesis alpha element of text int eger end text right parenthesis$ then a possible value of is

botany-General

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The sum of the series

2/e e/2

The correct answer is:

Related Questions to study

White light is incident normally on a thin film which has n = 1.5 and a thickness of 5000 Å. For what wavelengths in the visible spectrum (4000 – 7000 Å) will the intensity of the reflected light be a maximum?

White light is incident normally on a thin film which has n = 1.5 and a thickness of 5000 Å. For what wavelengths in the visible spectrum (4000 – 7000 Å) will the intensity of the reflected light be a maximum?

Which of the following is less general in characters as compared to genus?

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The sum of 730 + 450 using front – end estimation is______.

The sum of 730 + 450 using front – end estimation is______.

Round the number 5432 to the nearest hundred.