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AllQuestion and Answers: Page 481

Question Number 166063 Answers: 0 Comments: 2

Question Number 166058 Answers: 1 Comments: 0

Question Number 166053 Answers: 1 Comments: 1

Find x in R:^ x^(√2) + x = 6 (How to solve?)

$Find x in R \overset{}{:}$ $x^{\sqrt{2}} + x = 6 (How to solve ?)$

Question Number 166049 Answers: 0 Comments: 0

nε R/{0,1} montrer que Σ_(k=n) ^(2n) (x^k /(nx+ln(k)))>=(1/4)

$n ϵ R / {0, 1} m o n t r e r q u e$ $\underset{k = n}{\sum^{2 n}} \frac{x^{k}}{n x + l n (k)} >= \frac{1}{4}$

Question Number 166043 Answers: 0 Comments: 5

is 811 prime number or no ?

$i s 811 p r i m e n u m b e r o r n o ?$

Question Number 166036 Answers: 2 Comments: 2

Question Number 166033 Answers: 1 Comments: 1

Question Number 166009 Answers: 1 Comments: 4

{ ((x^2 +y^2 +z^2 =70)),((x^3 +y^3 +z^3 =64)),((x^4 +y^4 +z^4 =2002)),(((x+y)(y+z)(z+x)=?)) :} (Use Newton-Identities or otherwise)

${\begin{cases} x^{2} + y^{2} + z^{2} = 70 \\ x^{3} + y^{3} + z^{3} = 64 \\ x^{4} + y^{4} + z^{4} = 2002 \\ (x + y) (y + z) (z + x) = ? \end{cases}$ $(U s e N e w t o n - I d e n t i t i e s$ $o r o t h e r w i s e)$

Question Number 166007 Answers: 1 Comments: 1

Question Number 166006 Answers: 0 Comments: 0

chek the series Σ_(n=1) ^∞ cos(n) sin^2 ((1/n)) is converge or diverge ?

$c h e k t h e s e r i e s \underset{n = 1}{\sum^{\infty}} c o s (n) {s i n}^{2} (\frac{1}{n}) i s c o n v e r g e o r d i v e r g e ?$

Question Number 166017 Answers: 0 Comments: 0

Solve it ! 2 tan^(−1) (√((1−t)(1+t))) − tan^(−1) (1−t) = tan^(−1) t − tan^(−1) (√(1−t^2 ))

$Solve it!$ $2 \tan^{- 1} \sqrt{(1 - t) (1 + t)} - \tan^{- 1} (1 - t) = \tan^{- 1} t - \tan^{- 1} \sqrt{1 - t^{2}}$

Question Number 166015 Answers: 0 Comments: 0

study the convergence of integral and find valeur t−> (t/((1+t^2 )^2 ))dt

$s t u d y t h e c o n v e r g e n c e o f i n t e g r a l a n d f i n d v a l e u r$ $t - > \frac{t}{{(1 + t^{2})}^{2}} d t$

Question Number 166012 Answers: 1 Comments: 1

Question Number 166013 Answers: 1 Comments: 0

Question Number 165995 Answers: 1 Comments: 0

{ ((sinx+siny=(3/2))),((2^(sin x) +2^(sin y) =2+(√2))) :} faind x=?

${\begin{cases} s i n x + s i n y = \frac{3}{2} \\ 2^{\sin x} + 2^{\sin y} = 2 + \sqrt{2} \end{cases} f a i n d x = ?$

Question Number 165984 Answers: 1 Comments: 1

Question Number 165969 Answers: 0 Comments: 3

Question Number 165965 Answers: 2 Comments: 0

Question Number 165962 Answers: 0 Comments: 0

Question Number 165955 Answers: 1 Comments: 0

C = ∫_0 ^( π) (dx/(2+cos 2x)) =?

$C = \int_{0}^{π} \frac{dx}{2 + \cos 2 x} = ?$

Question Number 165942 Answers: 1 Comments: 5

Question Number 165949 Answers: 2 Comments: 0

f(x)=((5x−2)/a) ∧f^(−1) (x)=((x+b)/5) faind a×b=?

$f (x) = \frac{5 x - 2}{a} \land f^{- 1} (x) = \frac{x + b}{5}$ $f a i n d a \times b = ?$

Question Number 165950 Answers: 1 Comments: 0

y=(2x−1)^(100) (d^(99) y/dx^(99) )=?∧(d^(85) y/dx^(85) )=?

$y = {(2 x - 1)}^{100}$ $\frac{d^{99} y}{{d x}^{99}} = ? \land \frac{d^{85} y}{{d x}^{85}} = ?$

Question Number 165900 Answers: 1 Comments: 5

Question Number 165881 Answers: 3 Comments: 0

{ (((√(x/y))−(√(y/x))=(3/2))),((x+y+xy=9)) :}

${\begin{cases} \sqrt{\frac{x}{y}} - \sqrt{\frac{y}{x}} = \frac{3}{2} \\ x + y + x y = 9 \end{cases}$

Question Number 165879 Answers: 2 Comments: 0

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