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Question Number 172891 Answers: 0 Comments: 4

Question Number 172889 Answers: 0 Comments: 0

∫_0 ^∞ tanh^(−1) (sinh(x))dx small laplace

$$\int_{\mathrm{0}} ^{\infty} \boldsymbol{\mathrm{tanh}}^{−\mathrm{1}} \left(\boldsymbol{\mathrm{sinh}}\left(\boldsymbol{\mathrm{x}}\right)\right)\boldsymbol{\mathrm{dx}} \\ $$$$\boldsymbol{\mathrm{small}}\:\boldsymbol{\mathrm{laplace}} \\ $$

Question Number 172892 Answers: 0 Comments: 0

Question Number 172878 Answers: 1 Comments: 1

Question Number 172872 Answers: 4 Comments: 0

lim_( x→ 0^+ ) (x^( (1/(ln(xsin(x^3 ))))) )=?

$$ \\ $$$$\:\:\:\:\:\mathrm{lim}_{\:{x}\rightarrow\:\mathrm{0}^{+} } \left({x}^{\:\frac{\mathrm{1}}{\mathrm{l}{n}\left({xsin}\left({x}^{\mathrm{3}} \right)\right)}} \right)=? \\ $$$$ \\ $$$$ \\ $$

Question Number 172862 Answers: 0 Comments: 5

Question Number 172847 Answers: 0 Comments: 0

Question Number 172842 Answers: 0 Comments: 1

P(x^3 −x^2 ) = x^(5 ) + x P(−1)=?

$$\:\:\:\:\:\:\:{P}\left({x}^{\mathrm{3}} −{x}^{\mathrm{2}} \right)\:=\:{x}^{\mathrm{5}\:} \:+\:{x}\: \\ $$$$\:\:\:\:\:\:{P}\left(−\mathrm{1}\right)=? \\ $$

Question Number 172839 Answers: 1 Comments: 0

I=∫(1/(lnx))dx=?

$$\mathrm{I}=\int\frac{\mathrm{1}}{\mathrm{lnx}}\mathrm{dx}=? \\ $$

Question Number 172838 Answers: 2 Comments: 1

1.lim_(x→1) ((x−1−lnx)/(x^2 −2x+1)) = ?

$$\mathrm{1}.\underset{{x}\rightarrow\mathrm{1}} {\mathrm{lim}}\frac{\mathrm{x}−\mathrm{1}−\mathrm{lnx}}{\mathrm{x}^{\mathrm{2}} −\mathrm{2x}+\mathrm{1}}\:=\:? \\ $$

Question Number 172833 Answers: 0 Comments: 0

(a−b)÷b R=0 (4b−a)÷a R=? R=Reminder

$$\left({a}−{b}\right)\boldsymbol{\div}{b} \\ $$$${R}=\mathrm{0}\:\:\:\:\:\:\:\: \\ $$$$\left(\mathrm{4}{b}−{a}\right)\boldsymbol{\div}{a}\:\:\:\:\:{R}=? \\ $$$${R}={Reminder}\:\:\:\:\:\:\:\:\:\:\:\: \\ $$

Question Number 181382 Answers: 2 Comments: 1

Question Number 172824 Answers: 2 Comments: 2

Question Number 172823 Answers: 1 Comments: 0

Question Number 172822 Answers: 1 Comments: 0

Question Number 172821 Answers: 0 Comments: 1

Question Number 172820 Answers: 1 Comments: 0

Question Number 172819 Answers: 3 Comments: 0

Question Number 172818 Answers: 1 Comments: 0

Question Number 172817 Answers: 2 Comments: 0

Question Number 172816 Answers: 0 Comments: 0

Question Number 172802 Answers: 1 Comments: 0

Q: how many natural numbers less than 6000 , exist such as the sum of their digits equal to 8 ? choices: 155 165 164 158

$$ \\ $$$$\:\:\:\: \\ $$$$\:\mathrm{Q}:\:\:\:\:\mathrm{how}\:\mathrm{many}\:\mathrm{natural}\:\mathrm{numbers}\:\mathrm{less}\:\mathrm{than} \\ $$$$\:\:\:\:\:\:\mathrm{6000}\:\:,\:\mathrm{exist}\:\mathrm{such}\:\mathrm{as}\:\mathrm{the}\:\mathrm{sum}\:\mathrm{of} \\ $$$$\:\:\:\:\:\:\:\:\mathrm{their}\:\mathrm{digits}\:\:\mathrm{equal}\:\mathrm{to}\:\:\:\mathrm{8}\:? \\ $$$$\:\mathrm{choices}:\:\:\:\:\mathrm{155}\:\:\:\:\:\:\:\:\:\:\:\:\:\:\mathrm{165}\:\:\:\:\:\:\:\:\:\:\:\:\:\mathrm{164}\:\:\:\:\:\:\:\:\:\:\mathrm{158} \\ $$$$\:\:\:\:\:\:\: \\ $$$$ \\ $$$$ \\ $$$$ \\ $$

Question Number 172798 Answers: 1 Comments: 0

a^( 2) −1 ≡^(10) 14a +6 a^( 2) +a ≡^(10) ? choices: 2 3 7 8

$$ \\ $$$$\:\:\:\:\:\mathrm{a}^{\:\mathrm{2}} −\mathrm{1}\:\overset{\mathrm{10}} {\equiv}\:\mathrm{14a}\:+\mathrm{6} \\ $$$$\: \\ $$$$\:\:\:\:\:\:\:\:\:\:\:\:\mathrm{a}^{\:\mathrm{2}} \:+\mathrm{a}\:\overset{\mathrm{10}} {\equiv}\:?\:\:\:\: \\ $$$$\:\:\mathrm{choices}:\:\:\:\:\:\mathrm{2}\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\mathrm{3}\:\:\:\:\:\:\:\:\:\:\:\:\:\:\mathrm{7}\:\:\:\:\:\:\:\:\:\:\:\mathrm{8} \\ $$$$\: \\ $$$$ \\ $$$$ \\ $$

Question Number 172787 Answers: 0 Comments: 0

In AB^Δ C , prove that sin((A/2)).sin((B/2)).sin((C/2)) ≤ (1/8) −−−−−−−−

$$ \\ $$$$\:\:\:\mathrm{In}\:\:\mathrm{A}\overset{\Delta} {\mathrm{B}C}\:\:,\:\mathrm{prove}\:\:\mathrm{that}\: \\ $$$$\:{sin}\left(\frac{\mathrm{A}}{\mathrm{2}}\right).{sin}\left(\frac{\mathrm{B}}{\mathrm{2}}\right).{sin}\left(\frac{\mathrm{C}}{\mathrm{2}}\right)\:\leqslant\:\frac{\mathrm{1}}{\mathrm{8}} \\ $$$$\:\:\:−−−−−−−− \\ $$$$ \\ $$

Question Number 172785 Answers: 1 Comments: 0

Question Number 172784 Answers: 1 Comments: 0

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