What would cause water to turn from a gas to a liquid? a decreasing the water's temperature b increasing the water's temperature d increasing the water's mass of the above

1ple 3: Prove that \( (A \cup B)^{\prime}=A^{\prime} \cap B^{\prime} \) (i) Using Venn diagrams (ii) rigorously

11. Write any three objectives of teaching Mathematics at Primary level, 12. What is the Socio-Cultural background of mathematical knowledge? 13. Give three merits of Play-Way method. 14. Draw the Indian place value chart and represent the number 58308 . 15. Add \( 2.342,3.04 \) and 8.2 . 16. Divide 0.245 by 6 . 17. Define Scalene triangle, Isosceles triangle and Equilateral triangle. 18. What do you mean by comprehensiveness of evaluation? 19. Mention any three purposes of evaluation. 20. Give a list of three tools and three techniques of evaluation in Mathematics.

2) Verifique se a matriz abaixo é inversível. Caso seja inversível, encontre sua inversa. \[ A=\left[\begin{array}{ccc}1 & 1 & -1 \\ 2 & 1 & -1 \\ 3 & -1 & 1\end{array}\right] \]

Determining the number of people who are accountable to a single manager refers to A. Chain of command B. Degree of ecentralization C. Span of control D. Degree of specialization

11. If 'North-East' becomes 'West' and 'South-East' becomes South and so on. What will 'West'become? यदि उतर-पूर्व, पश्चिम हो जाता है और दक्षिण-पूर्व, दक्षिण हा जाता है, तो पश्चिम क्या होगा? (a) South-East/दक्षिण पूर्व (b) North-West/उत्तर-पश्चिम (c) South-West/दक्षिण पश्चिम (d) North-East/उत्तर पूर्व