ত্রৈধবিন্দুতে পানির বাষ্প চাপ পারদ স্তম্ভের কত উচ্চতার সমান?

Created: 9 months ago | Updated: 1 month ago

4.580 mm

1.013 mm

273.16 mm

12.93 mm

471

ABC ত্রিভুজের ক্ষেত্রে $a^{4} + b^{4} + c^{4} = 2 c^{2} (a^{2} + b^{2})$ হলে cos C এর মান হবে

Created: 3 months ago | Updated: 1 month ago

\frac{1}{\sqrt{2}}

\pm \frac{1}{\sqrt{2}}

\pm \frac{\sqrt{3}}{2}

None

482

Created: 3 months ago | Updated: 1 month ago

(\frac{3.5}{6}, \frac{\sqrt{3}}{4}) o r (\frac{\sqrt{3}}{4}, \frac{3.5}{6})

(\frac{6}{3.5}, \frac{4}{\sqrt{3}}) o r (\frac{6}{3.5}, \frac{4}{\sqrt{3}})

(\frac{3.5}{4}, \frac{6}{4}) o r (\frac{6}{4}, \frac{3.5}{4})

(\frac{\sqrt{3}}{3.5}, \frac{2}{3}) o r (\frac{2}{3}, \frac{\sqrt{3}}{3.5})

492

Created: 9 months ago | Updated: 1 month ago

\frac{1}{14} [\begin{matrix} 6 & 4 \\ - 2 & 1 \end{matrix}]

\frac{1}{14} [\begin{matrix} - 6 & - 4 \\ 2 & 1 \end{matrix}]

\frac{1}{14} [\begin{matrix} 6 & 4 \\ - 2 & - 1 \end{matrix}]

\frac{1}{- 14} [\begin{matrix} - 6 & - 4 \\ 2 & 1 \end{matrix}]

None

334

Created: 9 months ago | Updated: 1 month ago

0 °

45 °

95 °

90 °

None

345

Created: 3 months ago | Updated: 1 month ago

1 M

4 m

\frac{22}{7} m

2 m

768