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AllQuestion and Answers: Page 13

Question Number 218103 Answers: 2 Comments: 0

x+(1/x)=3 , x^5 +(1/x^5 )=?

$x + \frac{1}{x} = 3, x^{5} + \frac{1}{x^{5}} = ?$

Question Number 218099 Answers: 5 Comments: 0

x^2 +x+1=0 , x^4 +x^2 +1=?

$x^{2} + x + 1 = 0, x^{4} + x^{2} + 1 = ?$

Question Number 218093 Answers: 2 Comments: 0

Solve for x (√(2x+3)) −(√(x−2)) =(√(x+2))

$S o l v e f o r x$ $\sqrt{2 x + 3} - \sqrt{x - 2} = \sqrt{x + 2}$

Question Number 218088 Answers: 3 Comments: 0

Solve (√(x+5)) +(√(x−3)) =4

$S o l v e$ $\sqrt{x + 5} + \sqrt{x - 3} = 4$

Question Number 218076 Answers: 2 Comments: 0

How many ways to arrnge the letters ABCCCDEFG (1) in general . (2) all 3 Cs must be together (3) only 2 Cs must be together (4) no 2 or 3 Cs be together (5) no letter still in its original place .

$H o w m a n y w a y s t o a r r n g e$ $t h e l e t t e r s A B C C C D E F G$ $(1) i n g e n e r a l .$ $(2) a l l 3 C s m u s t b e t o g e t h e r$ $(3) o n l y 2 C s m u s t b e t o g e t h e r$ $(4) n o 2 o r 3 C s b e t o g e t h e r$ $(5) n o l e t t e r s t i l l i n i t s$ $o r i g i n a l p l a c e .$

Question Number 218066 Answers: 1 Comments: 2

If Alphaprime borrows 25$ from LYCONTRIX at the rzte of 12% p.a. How much does the former owe to the other in a span of 8years?

$I f A l p h a p r i m e b o r r o w s 25 $ f r o m$ $L Y C O N T R I X a t t h e r z t e o f 12 % p . a .$ $H o w m u c h d o e s t h e f o r m e r o w e t o t h e$ $o t h e r i n a s p a n o f 8 y e a r s ?$

Question Number 218063 Answers: 2 Comments: 0

∫_0 ^(2π) cos x^2

$\int_{0}^{2 π} \cos x^{2}$

Question Number 218057 Answers: 1 Comments: 0

Solve (x−3)^(5/3) −6(x−3)^(2/3) −8=0

$S o l v e$ ${(x - 3)}^{5 / 3} - 6 {(x - 3)}^{2 / 3} - 8 = 0$

Question Number 218055 Answers: 1 Comments: 1

Question Number 218054 Answers: 0 Comments: 0

Question Number 218047 Answers: 3 Comments: 0

Determine x: (√(x+3)) + ((x+1))^(1/3) =2

$D e t e r m i n e x :$ $\sqrt{x + 3} + \sqrt[3]{x + 1} = 2$

Question Number 218046 Answers: 0 Comments: 0

Question Number 218045 Answers: 0 Comments: 0

Question Number 218041 Answers: 1 Comments: 0

find (x,y,z)/such as (x+y+z=1 (x^2 +y^2 +z^2 =9 ((1/x)+(1/y)+(1/z)=1

$f i n d (x, y, z) / s u c h a s$ $(x + y + z = 1$ $(x^{2} + y^{2} + z^{2} = 9$ $(\frac{1}{x} + \frac{1}{y} + \frac{1}{z} = 1$

Question Number 218036 Answers: 2 Comments: 0

Solve x^2 + y^2 + xy = 19 x + y= 5

$S o l v e$ $x^{2} + y^{2} + xy = 19$ $x + y = 5$

Question Number 218030 Answers: 1 Comments: 5

Question Number 218025 Answers: 0 Comments: 0

I=∫_0 ^( ∞) te^(−t) J_(−(1/2)) (t ) dt =?

$I = \int_{0}^{\infty} {t e}^{- t} J_{- \frac{1}{2}} (t) d t = ?$

Question Number 218021 Answers: 1 Comments: 0

Question Number 218019 Answers: 2 Comments: 0

x^2 +y^2 +x+y=18 xy+x+y=7 Solve.

$x^{2} + y^{2} + x + y = 18$ $x y + x + y = 7$ $S o l v e .$

Question Number 218013 Answers: 1 Comments: 0

Question Number 218005 Answers: 0 Comments: 2

if x^2 +y^2 +z^2 =1, maximum value xy+2yz = ...

$if x^{2} + y^{2} + z^{2} = 1,$ $maximum value x y + 2 yz = . . .$

Question Number 218003 Answers: 0 Comments: 6

1. ∫ ((x dx)/((x + 2)∙(x + 4))) 2. ∫ ((x + 2)/(x^3 − 2x^2 )) dx 3. ∫ ((2x + 7)/(x^2 − 4x + 3)) dx

$1 . \int \frac{x dx}{(x + 2) \cdot (x + 4)}$ $2 . \int \frac{x + 2}{x^{3} - {2 x}^{2}} dx$ $3 . \int \frac{2 x + 7}{x^{2} - 4 x + 3} dx$

Question Number 217992 Answers: 0 Comments: 0

Question Number 217991 Answers: 1 Comments: 0

x^2 +3=0 x^2 +5=3

$x^{2} + 3 = 0$ $x^{2} + 5 = 3$

Question Number 217985 Answers: 0 Comments: 3

x^3 − 3x + 1 = 0 The roots of the equation → a , b , c Find → (a)^(1/3) + (b)^(1/3) + (c)^(1/3) = ?

$x^{3} - 3 x + 1 = 0$ $The roots of the equation \to a, b, c$ $Find \to \sqrt[3]{a} + \sqrt[3]{b} + \sqrt[3]{c} = ?$

Question Number 217982 Answers: 0 Comments: 2

Solve If 4^2^(2y−1 ) = 16^4^(y+1) and 8^3^(2x−1) = 2^9^(2−x) what is 2x + y?

$S o l v e$ $I f 4^{2^{2 y - 1}} = 16^{4^{y + 1}} a n d 8^{3^{2 x - 1}} = 2^{9^{2 - x}}$ $w h a t i s 2 x + y ?$

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