y = mx, $y = m_{1} x$ এবং y = b রেখা দ্বারা গঠিত ত্রিভুজের ক্ষেত্রফল হবে-

Created: 9 months ago | Updated: 3 months ago

\frac{1}{2 b^{2}} (m - m_{1})

\frac{b^{2}}{2} (\frac{1}{m} - \frac{1}{m^{1}})

2 b (\frac{1}{m^{1}} - \frac{1}{m})

\frac{1}{2 b} (m_{1} - m)

381

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

505

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})

520

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

367

Created: 9 months ago | Updated: 1 month ago

0 °

45 °

95 °

90 °

None

378

Created: 3 months ago | Updated: 1 month ago

1 M

4 m

\frac{22}{7} m

2 m

801