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Question Number 185947 Answers: 1 Comments: 0

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Question Number 185938 Answers: 2 Comments: 0

Question Number 185935 Answers: 2 Comments: 0

∫ ((1−cos x)/((1+cos x) cos x)) dx =?

$$\:\:\:\int\:\frac{\mathrm{1}−\mathrm{cos}\:{x}}{\left(\mathrm{1}+\mathrm{cos}\:{x}\right)\:\mathrm{cos}\:{x}}\:{dx}\:=? \\ $$

Question Number 185933 Answers: 1 Comments: 0

Question Number 185932 Answers: 1 Comments: 1

Question Number 185924 Answers: 2 Comments: 0

Question Number 185915 Answers: 3 Comments: 1

Question Number 185907 Answers: 1 Comments: 0

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Question Number 185890 Answers: 1 Comments: 0

Q: G( V , E ) is a graph , such that ∣ V (G )∣ = 20 , Δ ( G )= 8 , δ (G )=3 find the value of , q_( max) − q_( min) = ? q = ∣ E (G )∣

$$ \\ $$$$\:\:{Q}:\:\:\:\:\:{G}\left(\:{V}\:,\:{E}\:\right)\:\:{is}\:{a}\:{graph}\:,\:{such}\:{that} \\ $$$$\:\:\:\:\:\:\:\:\:\:\:\:\mid\:\:{V}\:\left({G}\:\right)\mid\:=\:\mathrm{20}\:,\:\:\Delta\:\left(\:{G}\:\right)=\:\mathrm{8}\:,\:\:\delta\:\left({G}\:\right)=\mathrm{3} \\ $$$$\:\:\:\:\:\:\:\:\:\:\:{find}\:\:{the}\:{value}\:{of}\:\:,\:\:{q}_{\:{max}} \:−\:{q}_{\:{min}} \:=\:? \\ $$$$\:\:\:\:\:\:\:\:\:\:\:\:{q}\:=\:\mid\:{E}\:\left({G}\:\right)\mid\:\: \\ $$

Question Number 185880 Answers: 2 Comments: 2

∫_0 ^(π/2) (((tan x))^(1/3) /((sin x+cos x)^2 )) dx=?

$$\:\:\underset{\mathrm{0}} {\overset{\pi/\mathrm{2}} {\int}}\:\frac{\sqrt[{\mathrm{3}}]{\mathrm{tan}\:{x}}}{\left(\mathrm{sin}\:{x}+\mathrm{cos}\:{x}\right)^{\mathrm{2}} }\:{dx}=? \\ $$

Question Number 185876 Answers: 3 Comments: 0

x = ((2ab)/(a+b)) then prove that ((x + a)/(x − a)) + ((x + b)/(x − b)) = 2

$${x}\:=\:\frac{\mathrm{2}{ab}}{{a}+{b}}\:\mathrm{then}\:\mathrm{prove}\:\mathrm{that}\: \\ $$$$\frac{{x}\:+\:{a}}{{x}\:−\:{a}}\:+\:\frac{{x}\:+\:{b}}{{x}\:−\:{b}}\:=\:\mathrm{2} \\ $$

Question Number 185873 Answers: 2 Comments: 0

(1) ∫πx^2 +(√((xe^π )/x^2 ))dx=? (2) ∫((ln (x)+ln (((−z)/x)))/x^z )+z^x dx=?

$$\left(\mathrm{1}\right)\:\int\pi{x}^{\mathrm{2}} +\sqrt{\frac{{xe}^{\pi} }{{x}^{\mathrm{2}} }}{dx}=? \\ $$$$\left(\mathrm{2}\right)\:\int\frac{\mathrm{ln}\:\left({x}\right)+\mathrm{ln}\:\left(\frac{−{z}}{{x}}\right)}{{x}^{{z}} }+{z}^{{x}} {dx}=? \\ $$

Question Number 185869 Answers: 2 Comments: 0

Question Number 185864 Answers: 1 Comments: 0

Question Number 185863 Answers: 1 Comments: 1

Question Number 185861 Answers: 0 Comments: 2

cos (((2π)/(13)))+cos (((6π)/(13)))+cos (((8π)/(13)))=?

$$\:\:\:\:\mathrm{cos}\:\left(\frac{\mathrm{2}\pi}{\mathrm{13}}\right)+\mathrm{cos}\:\left(\frac{\mathrm{6}\pi}{\mathrm{13}}\right)+\mathrm{cos}\:\left(\frac{\mathrm{8}\pi}{\mathrm{13}}\right)=? \\ $$

Question Number 185851 Answers: 1 Comments: 1

Question Number 185848 Answers: 1 Comments: 0

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