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Question Number 183008 Answers: 0 Comments: 1

Question Number 183010 Answers: 0 Comments: 10

what is the formula between actual depth apparent depth and refraction index that an object is in a rarer medium?

$w h a t i s t h e f o r m u l a b e t w e e n a c t u a l d e p t h$ $a p p a r e n t d e p t h a n d r e f r a c t i o n i n d e x$ $t h a t a n o b j e c t i s i n a r a r e r m e d i u m ?$

Question Number 182973 Answers: 3 Comments: 0

Question Number 182968 Answers: 0 Comments: 0

Question Number 182965 Answers: 0 Comments: 0

Question Number 182962 Answers: 2 Comments: 0

Question Number 182954 Answers: 0 Comments: 1

I=∫ (1/( (√(x (√x) −x^2 )))) dx I=∫ (1/( ∙ (√(x((√x) −x))))) dx I=∫ (1/( (√x) ∙ (√((√x) −x)) )) ×(2/2) dx I= ∫ (1/( (√(4(√x) −4x)))) ∙ (2/( (√x))) dx I=2∫ ( /( (√(1−(1−2 (√x))^2 )))) ∙ (1/( (√x))) dx I= −2∫ (1/( (√(1−(1−2(√x))^2 )))) ∙ d(1−2(√x)) I= −2sin^(−1) (1−2(√x)) +C Gamil AL mansob

$I = \int \frac{1}{\sqrt{x \sqrt{x} - x^{2}}} d x$ $I = \int \frac{1}{\cdot \sqrt{x (\sqrt{x} - x)}} d x$ $I = \int \frac{1}{\sqrt{x} \cdot \sqrt{\sqrt{x} - x}} \times \frac{2}{2} d x$ $I = \int \frac{1}{\sqrt{4 \sqrt{x} - 4 x}} \cdot \frac{2}{\sqrt{x}} d x$ $I = 2 \int \frac{}{\sqrt{1 - {(1 - 2 \sqrt{x})}^{2}}} \cdot \frac{1}{\sqrt{x}} d x$ $I = - 2 \int \frac{1}{\sqrt{1 - {(1 - 2 \sqrt{x})}^{2}}} \cdot d (1 - 2 \sqrt{x})$ $I = - 2 {s i n}^{- 1} (1 - 2 \sqrt{x}) + C$ $Gamil AL mansob$

Question Number 182953 Answers: 0 Comments: 0

H_4 (x)=L_0 (x) x=?

$H_{4} (x) = L_{0} (x) x = ?$

Question Number 182952 Answers: 1 Comments: 0

what is the probability that at least two from 23 people have birthday at the same day? (an unsolved old question)

$w h a t i s t h e p r o b a b i l i t y t h a t a t l e a s t$ $t w o f r o m 23 p e o p l e h a v e b i r t h d a y a t$ $t h e s a m e d a y ?$ $(a n u n s o l v e d o l d q u e s t i o n)$

Question Number 182949 Answers: 0 Comments: 0

if z(z^2 +3x)+xy=0 show that (d^2 z/dx^2 )+(d^2 z/dy^2 ) = ((2x(x−1))/((z^2 +3)^3 ))

$if z (z^{2} + 3 x) + xy = 0 show that$ $\frac{d^{2} z}{{dx}^{2}} + \frac{d^{2} z}{{dy}^{2}} = \frac{2 x (x - 1)}{{(z^{2} + 3)}^{3}}$

Question Number 182947 Answers: 1 Comments: 1

If a< b<0, then ∣a−b∣ + ∣a+b∣ + ∣ab∣=

$If a < b < 0, then ∣ a - b ∣ + ∣ a + b ∣ + ∣ ab ∣=$

Question Number 182946 Answers: 1 Comments: 1

If 0 < x <1 , then ∣ x −1 ∣ + ∣2x−4∣ + ∣2x+1∣=

$If 0 < x < 1, then ∣ x - 1 ∣ + ∣ 2 x - 4 ∣ + ∣ 2 x + 1 ∣=$

Question Number 182941 Answers: 0 Comments: 0

Solve: [x^2 +(xy^2 )^(1/3) ](dy/dx)=y M.m

$Solve :$ $[x^{2} + {({xy}^{2})}^{\frac{1}{3}}] \frac{dy}{dx} = y$ $M . m$

Question Number 182940 Answers: 2 Comments: 0

Are Σ_(n≥1) (1/(4n^2 −1)) and Σ_(n≥1) (1/(n(n+1)(n+2))) convergent?

$A r e \sum_{n ⩾ 1} \frac{1}{4 n^{2} - 1} a n d$ $\sum_{n ⩾ 1} \frac{1}{n (n + 1) (n + 2)} c o n v e r g e n t ?$

Question Number 182936 Answers: 0 Comments: 0

Question Number 182934 Answers: 1 Comments: 0

Is that right ! IF : Σ_(k = 1) ^n (⌊(n/k)⌋−⌊((n−1)/k)⌋) = 2 so n is a prime number .

$I s t h a t r i g h t!$ $I F :$ $\underset{k = 1}{\sum^{n}} (⌊ \frac{n}{k} ⌋ - ⌊ \frac{n - 1}{k} ⌋) = 2$ $s o n i s a p r i m e n u m b e r .$

Question Number 182928 Answers: 6 Comments: 0

Question Number 182923 Answers: 0 Comments: 3

diameter of concave mirror=60cm p=10.5cm q=?

$d i a m e t e r o f c o n c a v e m i r r o r = 60 c m$ $p = 10.5 c m$ $q = ?$

Question Number 182922 Answers: 1 Comments: 0

solve ⌊ x ⌋ + ⌊ 2x ⌋ + ⌊ 3x ⌋ =1

$s o l v e$ $⌊ x ⌋ + ⌊ 2 x ⌋ + ⌊ 3 x ⌋ = 1$

Question Number 182921 Answers: 0 Comments: 1

what are the examples of microscopic and macroscopic in physics?

$w h a t a r e t h e e x a m p l e s o f m i c r o s c o p i c$ $a n d m a c r o s c o p i c i n p h y s i c s ?$

Question Number 194056 Answers: 2 Comments: 0

Question Number 182910 Answers: 1 Comments: 0

Question Number 182909 Answers: 0 Comments: 0

xε]−1,1[ calcul: Σ_(n=1) ^(+oo) (x^n /((1−x^n )(1−x^(n+1) )))

$x ϵ] - 1, 1 [c a l c u l :$ $\underset{n = 1}{\sum^{+ o o}} \frac{x^{n}}{(1 - x^{n}) (1 - x^{n + 1})}$

Question Number 182907 Answers: 0 Comments: 0

2, 3, 5, 7, 11

$2, 3, 5, 7, 11$

Question Number 182906 Answers: 0 Comments: 0

2^(−1) =(1/2)

$2^{- 1} = \frac{1}{2}$

Question Number 182905 Answers: 0 Comments: 0

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