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AllQuestion and Answers: Page 236

Question Number 197081 Answers: 0 Comments: 5

Question Number 197073 Answers: 1 Comments: 0

Question Number 197072 Answers: 2 Comments: 0

tan123=k tan167=?

$$\mathrm{tan123}=\boldsymbol{\mathrm{k}} \\ $$$$\mathrm{tan167}=? \\ $$

Question Number 197064 Answers: 2 Comments: 0

Question Number 197063 Answers: 1 Comments: 0

Question Number 197060 Answers: 1 Comments: 1

Prove that ∫^( (π/2)) _( 0) ((ln(1+αsint))/(sint))dt= (π^2 /8)−(1/2)(arccosα)^2

$$\mathrm{Prove}\:\mathrm{that}\: \\ $$$$\underset{\:\mathrm{0}} {\int}^{\:\frac{\pi}{\mathrm{2}}} \frac{\mathrm{ln}\left(\mathrm{1}+\alpha\mathrm{sin}{t}\right)}{\mathrm{sin}{t}}{dt}=\:\frac{\pi^{\mathrm{2}} }{\mathrm{8}}−\frac{\mathrm{1}}{\mathrm{2}}\left(\mathrm{arccos}\alpha\right)^{\mathrm{2}} \\ $$

Question Number 197057 Answers: 3 Comments: 2

Question Number 197054 Answers: 1 Comments: 0

lim_(x→(π/4)) ((sin^9 x−(1/2) cos^7 x)/(4x−π)) =?

$$\:\:\:\:\:\:\underset{{x}\rightarrow\frac{\pi}{\mathrm{4}}} {\mathrm{lim}}\:\frac{\mathrm{sin}\:^{\mathrm{9}} \mathrm{x}−\frac{\mathrm{1}}{\mathrm{2}}\:\mathrm{cos}\:^{\mathrm{7}} \mathrm{x}}{\mathrm{4x}−\pi}\:=? \\ $$

Question Number 197052 Answers: 1 Comments: 0

Find all the values of sin^(−1) (√2)

$$\mathrm{Find}\:\mathrm{all}\:\mathrm{the}\:\mathrm{values}\:\mathrm{of}\:\mathrm{sin}^{−\mathrm{1}} \sqrt{\mathrm{2}} \\ $$

Question Number 197050 Answers: 2 Comments: 4

Question Number 197042 Answers: 0 Comments: 0

((sinx)/b)+((cosx)/a)=k find k(a+b)? plz i need dears

$$\frac{\mathrm{sinx}}{\mathrm{b}}+\frac{\mathrm{cosx}}{\mathrm{a}}=\boldsymbol{\mathrm{k}} \\ $$$$\boldsymbol{\mathrm{find}}\:\:\:\boldsymbol{\mathrm{k}}\left(\boldsymbol{\mathrm{a}}+\boldsymbol{\mathrm{b}}\right)? \\ $$$$\boldsymbol{\mathrm{plz}}\:\boldsymbol{\mathrm{i}}\:\boldsymbol{\mathrm{need}}\:\boldsymbol{\mathrm{dears}} \\ $$$$ \\ $$

Question Number 197040 Answers: 1 Comments: 6

Question Number 197038 Answers: 0 Comments: 0

Question Number 197036 Answers: 1 Comments: 0

calcule la derive de: g(x)= arctan(((x−1)/(2x−3)))

$${calcule}\:{la}\:{derive}\:{de}: \\ $$$${g}\left({x}\right)=\:{arctan}\left(\frac{{x}−\mathrm{1}}{\mathrm{2}{x}−\mathrm{3}}\right) \\ $$

Question Number 197035 Answers: 1 Comments: 0

tan18=a then find you tan72?

$$\mathrm{tan18}=\boldsymbol{\mathrm{a}}\:\boldsymbol{\mathrm{then}}\:\boldsymbol{\mathrm{find}}\:\boldsymbol{\mathrm{you}}\:\mathrm{tan72}? \\ $$

Question Number 197034 Answers: 1 Comments: 0

Question Number 197032 Answers: 1 Comments: 0

(logtan3)(logtan6)(logtan9)(...(logtan87)=? plz i need

$$\left(\mathrm{logtan3}\right)\left(\mathrm{logtan6}\right)\left(\mathrm{logtan9}\right)\left(...\left(\mathrm{logtan87}\right)=?\right. \\ $$$$\boldsymbol{\mathrm{plz}}\:\boldsymbol{\mathrm{i}}\:\boldsymbol{\mathrm{need}} \\ $$

Question Number 197029 Answers: 1 Comments: 0

lim_(x→0) ((x^8 −sin^8 x)/x^(10) ) =?

$$\:\:\:\:\:\:\underset{{x}\rightarrow\mathrm{0}} {\mathrm{lim}}\:\:\frac{\mathrm{x}^{\mathrm{8}} −\mathrm{sin}\:^{\mathrm{8}} \mathrm{x}}{\mathrm{x}^{\mathrm{10}} }\:=? \\ $$

Question Number 197027 Answers: 2 Comments: 0

Question Number 197024 Answers: 3 Comments: 0

calculate Ω= ∫_0 ^( (π/2)) sin(x) (√( 1+^ sin(x)cos(x))) dx=?

$$ \\ $$$$\:\:\:\:\:\:{calculate} \\ $$$$\:\Omega=\:\int_{\mathrm{0}} ^{\:\frac{\pi}{\mathrm{2}}} {sin}\left({x}\right)\:\sqrt{\:\mathrm{1}\overset{} {+}\:{sin}\left({x}\right){cos}\left({x}\right)}\:{dx}=? \\ $$$$ \\ $$

Question Number 197018 Answers: 2 Comments: 0

Question Number 197017 Answers: 0 Comments: 1

Question Number 197011 Answers: 2 Comments: 0

Question Number 197010 Answers: 1 Comments: 0

Question Number 197008 Answers: 1 Comments: 0

Question Number 197005 Answers: 1 Comments: 0

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