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Question Number 168906 Answers: 1 Comments: 0

Question Number 168905 Answers: 1 Comments: 0

Question Number 168898 Answers: 1 Comments: 0

Question Number 168894 Answers: 1 Comments: 1

Question Number 168885 Answers: 0 Comments: 11

Find all the values of n such that: determinant (((digit-sum(n^3 )=n ))) and show that n has at most 2 digits. ^■ digit-sum(abc..^(−) )=a+b+c+...

$Find all the values of n such that :$ $\begin{matrix} digit - sum (n^{3}) = n \end{matrix}$ $and$ $show that n has at most 2 digits .$ $^{◼} digit - sum (\overset{―}{abc . .}) = a + b + c + . . .$

Question Number 168881 Answers: 1 Comments: 0

sin(π(√(ix))) + sinh(π(√(ix))) = 0 Find all the real value/s of x.

$\sin (π \sqrt{ix}) + \sinh (π \sqrt{ix}) = 0$ $Find all the real value / s of x .$

Question Number 168878 Answers: 1 Comments: 3

solve: x^(2019) +x^(2020) +x^(2021) +x^(2022) =4

$s o l v e : x^{2019} + x^{2020} + x^{2021} + x^{2022} = 4$

Question Number 168874 Answers: 0 Comments: 0

Question Number 168873 Answers: 0 Comments: 0

Question Number 168872 Answers: 0 Comments: 2

E=∫^π _0 [((a^2 σ sin θ)/(2ε(√(a^2 −x^2 −2ax cosθ))))]dθ If a>x show that E = ((a^2 σ)/(εx))

$E = {\int_{0}}^{π} [\frac{a^{2} σ \sin θ}{2 ϵ \sqrt{a^{2} - x^{2} - 2 a x \cos θ}}] d θ$ $If a > x show that E = \frac{a^{2} σ}{ϵ x}$

Question Number 168860 Answers: 0 Comments: 0

Question Number 168859 Answers: 1 Comments: 0

Prove that: 1. A + B^(−) = A^(−) ∙ B^(−) , AB^(−) = A^(−) + B^(−) 2. (A + C)(B + C) = AB + C

$Prove that :$ $1 . \overset{―}{A + B} = \overset{―}{A} \cdot \overset{―}{B}, \overset{―}{AB} = \overset{―}{A} + \overset{―}{B}$ $2 . (A + C) (B + C) = AB + C$

Question Number 168858 Answers: 1 Comments: 0

Simplify: 1. (A + B)(A + B^(−) ) 2. (A^(−) + B)(A^(−) + B^(−) )

$Simplify :$ $1 . (A + B) (A + \overset{―}{B})$ $2 . (\overset{―}{A} + B) (\overset{―}{A} + \overset{―}{B})$

Question Number 168857 Answers: 3 Comments: 0

Question Number 168856 Answers: 1 Comments: 0

Re(2+e^(iαt) )?

$Re (2 + e^{i α t}) ?$

Question Number 168855 Answers: 0 Comments: 0

Question Number 168852 Answers: 0 Comments: 3

Question Number 168868 Answers: 0 Comments: 0

Question Number 168842 Answers: 0 Comments: 0

Question Number 168841 Answers: 0 Comments: 0

Question Number 168832 Answers: 1 Comments: 1

Question Number 168830 Answers: 0 Comments: 1

Question Number 168828 Answers: 0 Comments: 1

∫_0 ^(π/2) cos^(−1) ((1/(1+2cos x)))dx

$\int_{0}^{π / 2} \cos^{- 1} (\frac{1}{1 + 2 \cos x}) d x$

Question Number 168821 Answers: 1 Comments: 0

lim_(x→a) ((a^x −a^n )/(nln(x)−nln(a)))=?

$\lim_{x \to a} \frac{a^{x} - a^{n}}{n l n (x) - n l n (a)} = ?$

Question Number 168819 Answers: 3 Comments: 0

De^ montrer que: Demonstrate that: lim_(x→0) (((e^x −1−ln (x+1))/(cos (x)−1))) = −2

$D \overset{´}{e m o n t r e r} que :$ $Demonstrate that :$ $\lim_{x \to 0} (\frac{e^{x} - 1 - \ln (x + 1)}{\cos (x) - 1}) = - 2$

Question Number 168813 Answers: 1 Comments: 0

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