AP EAMCET · Maths · Matrices
If , then
- A
- B
- C does not exist
- D
Answer & Solution
Correct Answer
(B)
Step-by-step Solution
Detailed explanation
A=173-26-6-32-263 A=37-2149+27-1449+67-427 =-9-4-3649=-1 AT=173-6-2-2-36623 A-1=1AAdjA Now AdjA=17-2114-424221-1414-42-21T =17-2142141421-42-42-14-21 =-36223-6-6-2-3 Hence, A-1=1-17-36223-6-6-2-3 =173-6-2-2-36623
See the Complete Solution
Get step-by-step explanations for this and 2.5 Lakh+ more JEE, NEET & CET questions.
- Unlock all solutions
- Practice the full chapter
- Track accuracy across PYQs
4.8 rated on Google Play · 14,000+ reviews
More questions from Maths
- What is the value ofAP EAMCET 2021 Medium
- The minimum degree of a polynomial equation with rational coefficients having \(\sqrt{3}+\sqrt{27}, \sqrt{2}+5 i\) as two of its roots isAP EAMCET 2018 Hard
- Let \(\alpha \neq 1\) be a real root of the equation \(x^3-a x^2+a x-1=0\), where \(a \neq-1\) is a rea number. Then, a root of this equation, among the following, isAP EAMCET 2010 Medium
- If \(X\) is a binomial variate with mean 6 and variance 2 , then the value of \(P(5 \leq X \leq 7)\) isAP EAMCET 2018 Medium
- The coefficient of \(x^5\) in the expansion of \(\left(1+x^2\right)^5(1+x)^4\), is :AP EAMCET 2003 Medium
- \(\operatorname{Tanh}^{-1}(\sin \theta)=\)AP EAMCET 2025 Medium
More PYQs from AP EAMCET
- Match the following:
\(\begin{array}{|c|c|c|}
\hline & \text { List I } & \text { List II } \\
\hline \text { (A) } & \Delta U=W_{\mathrm{ad}} & \text { I. Isothermal reversible expansion } \\
\hline \text { (B) } & \Delta U=q-W & \text { II. Wall is adiabatic } \\
\hline(\mathrm{C}) & \Delta U=-q & \text { III. Thermally conducting walls } \\
\hline \text { (D) } & \Delta U=0 & \text { IV. Isolated system } \\
\hline & & \text { V. Closed system } \\
\hline
\end{array}\)
The correct answer isAP EAMCET 2019 Easy - If the straight line touches the curve at the point on it and thenAP EAMCET 2022 Hard
- The figure formed by the four points \((\hat{\mathbf{i}}+\hat{\mathbf{j}}-\hat{\mathbf{k}}),(2 \hat{\mathbf{i}}+3 \hat{\mathbf{j}}),(5 \hat{\mathbf{j}}-2 \hat{\mathbf{k}})\) and \((\hat{\mathbf{k}}-\hat{\mathbf{j}})\) isAP EAMCET 2021 Easy
- If \(m\) and \(n\) are the least and greatest values of \(|z|\) respectively and \(|z-4+3 i| \leq 1\). Let \(k\) be the least value of \(\frac{x^4+x^2+4}{x}\) on the interval \((0, \infty)\). Then \(k=\)AP EAMCET 2020 Medium
- If \(P=(0,1,0), Q=(0,0,1)\), then the projection of \(P Q\) on the plane \(x+y+z=3\) isAP EAMCET 2002 Medium
- Find \(|\mathbf{a} \times \mathbf{b}|^2\), if \(|\mathbf{a}|=2,|\mathbf{b}|=3\) and \((\mathbf{a}, \mathbf{b})=\frac{\pi}{6}\)AP EAMCET 2020 Easy