Question and Answers Forum

All Questions Topic List

AllQuestion and Answers: Page 1161

Question Number 93512 Answers: 0 Comments: 2

(xy+sin y)dx+(0.5x^2 +xcos y)dy=o

$(x y + \sin y) d x + (0.5 x^{2} + x \cos y) d y = o$

Question Number 93510 Answers: 0 Comments: 1

y^′ −y.tan x+y^2 cos x=0

$y^{^{'}} - y . \tan x + y^{2} \cos x = 0$

Question Number 93493 Answers: 0 Comments: 4

Question Number 93484 Answers: 0 Comments: 2

∫t^2 /(1+t^2 )^2 dx=

$\int t^{2} / {(1 + t^{2})}^{2} dx =$

Question Number 93483 Answers: 0 Comments: 0

prove that the equation of the normal to the rectangular hyperbola xy = c^2 at the point P(ct, c/t) is t^3 x −ty = c(t^4 −1). the normal to P on the hyperbola meets the x−axis at Q and the tangent to P meets the yaxis at R. show that the locus of the midpoint oc QR, as P varies is 2c^2 xy + y^4 = c^4 .

$prove that the equation of the normal to the rectangular$ $hyperbola x y = c^{2} at the point P (c t, c / t) is t^{3} x - t y = c (t^{4} - 1) .$ $the normal to P on the hyperbola meets the x - axis at Q and the$ $tangent to P meets the yaxis at R . show that$ $the locus of the midpoint oc Q R, as P varies is 2 c^{2} x y + y^{4} = c^{4} .$

Question Number 93481 Answers: 1 Comments: 1

∫(log x/x^2 )dx=

$\int (\log x / x^{2}) dx =$

Question Number 93478 Answers: 0 Comments: 2

1\Calculate f_x (2,3) if f(x,y)=x^2 +y^2 2\Calculate df(x,y) for x=1, y=0, dx=(1/2) and dy=(1/4) if f(x,y)=(√(x^2 +y^2 ))

$1 ∖ Calculate f_{x} (2, 3) if f (x, y) = x^{2} + y^{2}$ $2 ∖ Calculate df (x, y) for x = 1, y = 0, dx = \frac{1}{2}$ $and dy = \frac{1}{4} if f (x, y) = \sqrt{x^{2} + y^{2}}$

Question Number 93477 Answers: 2 Comments: 0

Differentiate completely; 1\ f(x,y)=x^2 +xy^2 +siny 2\ f(x,y)=e^(x^2 +y^2 ) 3\ f(x,y,z)=tan(3x−y)+6^(y+2)

$Differentiate completely;$ $1 ∖ f (x, y) = x^{2} + {xy}^{2} + siny$ $2 ∖ f (x, y) = e^{x^{2} + y^{2}}$ $3 ∖ f (x, y, z) = \tan (3 x - y) + 6^{y + 2}$

Question Number 93474 Answers: 2 Comments: 0

Q. Prove by mathematical induction that Σ_(r=1) ^n (4r + 5) = 2n^2 + 7n

$Q . Prove by mathematical induction that$ $\underset{r = 1}{\sum^{n}} (4 r + 5) = 2 n^{2} + 7 n$

Question Number 93473 Answers: 1 Comments: 1

∫1/(1+x^2 )^2

$\int 1 / {(1 + x^{2})}^{2}$

Question Number 93471 Answers: 1 Comments: 0

∫1/1+x2

$\int 1 / 1 + x 2$

Question Number 93470 Answers: 1 Comments: 4

Solve: 3x^(x + 1) − 3x^(x − 1) = 8

$Solve : 3 x^{x + 1} - 3 x^{x - 1} = 8$

Question Number 93467 Answers: 1 Comments: 0

∫ (sin x+2cos x)^3 dx

$\int {(\sin x + 2 \cos x)}^{3} dx$

Question Number 93464 Answers: 1 Comments: 0

If f a function such that f(a).f(b)−f(a+b)=a+b. find the value of f(2019)

$If f a function such that$ $f (a) . f (b) - f (a + b) = a + b .$ $find the value of f (2019)$

Question Number 93460 Answers: 1 Comments: 1

solve for x,y >0 2x⌊y⌋ = 2020 3y⌊x⌋ = 2021

$solve for x, y > 0$ $2 x ⌊ y ⌋ = 2020$ $3 y ⌊ x ⌋ = 2021$

Question Number 93451 Answers: 0 Comments: 3

Solve by using change the conistant megbod 4y^(′′) +y=((x^2 −1)/(x(√x)))?

$S o l v e b y u s i n g c h a n g e t h e c o n i s t a n t m e g b o d$ $4 y^{^{″}} + y = \frac{x^{2} - 1}{x \sqrt{x}} ?$

Question Number 93450 Answers: 2 Comments: 0

what is the value of coefficient of x^9 in expansion (1+x)(1+x^2 ) (1+x^3 )(1+x^4 )×...×(1+x^(100) ) ?

$what is the value of coefficient$ $of x^{9} in expansion (1 + x) (1 + x^{2})$ $(1 + x^{3}) (1 + x^{4}) \times . . . \times (1 + x^{100}) ?$

Question Number 93442 Answers: 0 Comments: 3

To tinkutara I have forget my old password and has to create a new one. Is there any way to retrive my old account.

$To tinkutara$ $I have forget my old password and has to create a$ $new one . Is there any way to retrive my old account .$

Question Number 93446 Answers: 0 Comments: 1

what is the coefficient of x^5 in the expansion (1+x^2 )(1+x)^4

$what is the coefficient of x^{5}$ $in the expansion (1 + x^{2}) {(1 + x)}^{4}$

Question Number 93439 Answers: 2 Comments: 0

Question Number 93434 Answers: 1 Comments: 1

Question Number 93428 Answers: 1 Comments: 0

Question Number 93418 Answers: 0 Comments: 3

let A= (((1 2 3)),((3 2 1)) ) ∈M_3 (C) (1 4 2 ) 1) find A^(−1) if A inversible 2) calculate A^n 3)find cosA and sinA 4) is cos^2 A +sin^2 A =I ?

$l e t A = (\begin{matrix} 1 2 3 \\ 3 2 1 \end{matrix}) \in M_{3} (C)$ $(1 4 2)$ $1) f i n d A^{- 1} i f A i n v e r s i b l e$ $2) c a l c u l a t e A^{n}$ $3) f i n d c o s A a n d s i n A$ $4) i s {c o s}^{2} A + {s i n}^{2} A = I ?$

Question Number 93415 Answers: 0 Comments: 5

let A = (((1 −1)),((1 1)) ) 1) calculate A^(−1) and A^(−2) 2) calculate A^n 3) find e^A and e^(−A)

$l e t A = (\begin{matrix} 1 - 1 \\ 1 1 \end{matrix})$ $1) c a l c u l a t e A^{- 1} a n d A^{- 2}$ $2) c a l c u l a t e A^{n}$ $3) f i n d e^{A} a n d e^{- A}$

Question Number 93414 Answers: 0 Comments: 0

let p(x)=((x^n (4−2x)^n )/(n!)) 1) prove that p^((k)) (0)=p^((k)) (2)=0 for all k∈[1,n−1] 2) prove that ∀m∈N p^((m)) (0) and p^((m)) (2) are integrs

$l e t p (x) = \frac{x^{n} {(4 - 2 x)}^{n}}{n!}$ $1) p r o v e t h a t p^{(k)} (0) = p^{(k)} (2) = 0 f o r a l l k \in [1, n - 1]$ $2) p r o v e t h a t \forall m \in N p^{(m)} (0) a n d p^{(m)} (2) a r e i n t e g r s$

Question Number 93410 Answers: 0 Comments: 7

∫((1+x^6 )/(1+x^8 ))dx

$\int \frac{1 + x^{6}}{1 + x^{8}} d x$

Pg 1156 Pg 1157 Pg 1158 Pg 1159 Pg 1160 Pg 1161 Pg 1162 Pg 1163 Pg 1164 Pg 1165

Terms of Service

Contact: info@tinkutara.com