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Question Number 100133 Answers: 1 Comments: 0

If sin^(−1) θ+sin^(−1) β=π θ+β−(2/(θ^2 +β^2 )) = ?

$$\mathrm{If}\:\mathrm{sin}^{−\mathrm{1}} \theta+\mathrm{sin}^{−\mathrm{1}} \beta=\pi\: \\ $$$$\theta+\beta−\frac{\mathrm{2}}{\theta^{\mathrm{2}} +\beta^{\mathrm{2}} }\:=\:? \\ $$

Question Number 100131 Answers: 2 Comments: 3

If 3sin x+4cos x=5 then sin x=?

$$\mathrm{If}\:\mathrm{3sin}\:\mathrm{x}+\mathrm{4cos}\:\mathrm{x}=\mathrm{5}\:\mathrm{then}\:\mathrm{sin}\:\mathrm{x}=? \\ $$

Question Number 100130 Answers: 1 Comments: 0

how many integer number satisfy the equation ((sin x−∣x+2∣)/(x^2 −4x−5)) ≥ 0

$$\mathrm{how}\:\mathrm{many}\:\mathrm{integer}\:\mathrm{number}\: \\ $$$$\mathrm{satisfy}\:\mathrm{the}\:\mathrm{equation}\: \\ $$$$\frac{\mathrm{sin}\:\mathrm{x}−\mid\mathrm{x}+\mathrm{2}\mid}{\mathrm{x}^{\mathrm{2}} −\mathrm{4x}−\mathrm{5}}\:\geqslant\:\mathrm{0}\: \\ $$

Question Number 100114 Answers: 1 Comments: 0

Question Number 100106 Answers: 0 Comments: 6

APK with the option to review a post in forum is available. Review is essentially same as comment however an editable original post is included in editor. While review post with images image is used as background and you can use shapes like ovals circle etc to highlight. This should remove to manually count lines to highlight corrections. Once in progress enhancements are this version app will updated to playstore.

$$\mathrm{APK}\:\mathrm{with}\:\mathrm{the}\:\mathrm{option}\:\mathrm{to}\:\mathrm{review} \\ $$$$\mathrm{a}\:\mathrm{post}\:\mathrm{in}\:\mathrm{forum}\:\mathrm{is}\:\mathrm{available}. \\ $$$$\mathrm{Review}\:\mathrm{is}\:\mathrm{essentially}\:\mathrm{same}\:\mathrm{as}\:\mathrm{comment} \\ $$$$\mathrm{however}\:\mathrm{an}\:\mathrm{editable}\:\mathrm{original} \\ $$$$\mathrm{post}\:\mathrm{is}\:\mathrm{included}\:\mathrm{in}\:\mathrm{editor}. \\ $$$$\mathrm{While}\:\mathrm{review}\:\mathrm{post}\:\mathrm{with}\:\mathrm{images} \\ $$$$\mathrm{image}\:\mathrm{is}\:\mathrm{used}\:\mathrm{as}\:\mathrm{background}\:\mathrm{and} \\ $$$$\mathrm{you}\:\mathrm{can}\:\mathrm{use}\:\mathrm{shapes}\:\mathrm{like}\:\mathrm{ovals} \\ $$$$\mathrm{circle}\:\mathrm{etc}\:\mathrm{to}\:\mathrm{highlight}. \\ $$$$\mathrm{This}\:\mathrm{should}\:\mathrm{remove}\:\mathrm{to}\:\mathrm{manually} \\ $$$$\mathrm{count}\:\mathrm{lines}\:\mathrm{to}\:\mathrm{highlight}\:\mathrm{corrections}. \\ $$$$\mathrm{Once}\:\mathrm{in}\:\mathrm{progress}\:\mathrm{enhancements}\:\mathrm{are} \\ $$$$\mathrm{this}\:\mathrm{version}\:\mathrm{app}\:\mathrm{will}\:\mathrm{updated}\:\mathrm{to}\:\mathrm{playstore}. \\ $$

Question Number 100097 Answers: 0 Comments: 1

∫(tanx)^e^(iπ) dx

$$\int\left({tanx}\right)^{{e}^{{i}\pi} } {dx} \\ $$

Question Number 100089 Answers: 0 Comments: 0

calculate A_n =∫_0 ^(π/2) ((sin^n (x))/(sin(nx)))dx

$$\:\mathrm{calculate}\:\mathrm{A}_{\mathrm{n}} =\int_{\mathrm{0}} ^{\frac{\pi}{\mathrm{2}}} \:\frac{\mathrm{sin}^{\mathrm{n}} \left(\mathrm{x}\right)}{\mathrm{sin}\left(\mathrm{nx}\right)}\mathrm{dx}\: \\ $$

Question Number 100088 Answers: 1 Comments: 1

calculate ∫ ((cosx)/(cos(3x)))dx

$$\mathrm{calculate}\:\int\:\frac{\mathrm{cosx}}{\mathrm{cos}\left(\mathrm{3x}\right)}\mathrm{dx} \\ $$

Question Number 100087 Answers: 1 Comments: 1

use beta function to calculate ∫_0 ^π sin^3 x(2+cosx)^6 dx

$$\mathrm{use}\:\mathrm{beta}\:\mathrm{function}\:\mathrm{to}\:\mathrm{calculate}\:\int_{\mathrm{0}} ^{\pi} \:\mathrm{sin}^{\mathrm{3}} \mathrm{x}\left(\mathrm{2}+\mathrm{cosx}\right)^{\mathrm{6}} \:\mathrm{dx} \\ $$

Question Number 100074 Answers: 1 Comments: 0

Question Number 100068 Answers: 2 Comments: 0

hello all i have some questions? 1)what is the riemann hypothesis? 2)how did they determine the distance to the sun? 3)how did we measure the speed of light?

$${hello}\:{all}\:{i}\:{have}\:{some}\:{questions}? \\ $$$$ \\ $$$$\left.\mathrm{1}\right){what}\:{is}\:{the}\:{riemann}\:{hypothesis}? \\ $$$$ \\ $$$$\left.\mathrm{2}\right){how}\:{did}\:{they}\:{determine}\:{the}\:{distance} \\ $$$${to}\:{the}\:{sun}? \\ $$$$ \\ $$$$\left.\mathrm{3}\right){how}\:{did}\:{we}\:{measure}\:{the}\:{speed}\:{of}\:{light}? \\ $$$$ \\ $$

Question Number 100065 Answers: 8 Comments: 0