$\overset{⇀}{A} = 2 \overset{⇀}{i} + \overset{⇀}{k} ও \overset{⇀}{B} = 2 \overset{⇀}{i} + 10 \overset{⇀}{j} - 11 k$ দ্বারা গঠিত সমতলের উপর একক লম্ব ভেক্টর কোনটি ?

Created: 10 months ago | Updated: 3 months ago

\frac{1}{\sqrt{29}} (2 \overset{⇀}{i} + 3 \overset{⇀}{j} + 4 \overset{⇀}{k})

\frac{4}{\sqrt{29}} (2 \overset{⇀}{i} + 3 \overset{⇀}{j} + 4 \overset{⇀}{k})

\frac{4}{\sqrt{29}} (4 \overset{⇀}{i} + 3 \overset{⇀}{j} + 2 \overset{⇀}{k})

\frac{1}{\sqrt{29}} (- 4 \overset{⇀}{i} + 3 \overset{⇀}{j} + 2 \overset{⇀}{k})

\frac{1}{\sqrt{29}} (- 4 \overset{⇀}{i} + 3 \overset{⇀}{j} - 2 \overset{⇀}{k})

255

ফাংশন f:R $\to$ R কে f(x) = x² দ্বারা সংগায়িত করা হলে $f^{- 1}$ (16) এর সমান কোনটি?

Created: 10 months ago | Updated: 2 months ago

{-4, 4}

{-4,4

502

Created: 4 months ago | Updated: 2 months ago

3 m s^{- 1}

4 m s^{- 1}

2.4 m s^{- 1}

2.5 m s^{- 1}

559

Created: 10 months ago | Updated: 2 months ago

c = b

c = 0

c = -b

c = 1

433

Created: 4 months ago | Updated: 2 months ago

৭০

৯০

100

508

Created: 10 months ago | Updated: 2 months ago

{}^{n}C_{3}

২৭

৮১

৪

487