## Class 9 study materials part 4

April 26, 2020NoticeComments Off on Class 9 study materials part 4

Watch the video and answer the given questions

1. Write the laws of chemical combination with the help of examples?
2. What are molecules?
3. What is cation and anion?
4. How do we find atomic mass? Explain with the help of examples.
5. What is the difference between molar mass and atomic mass?

A. Which of the following are polynomials?
4x² – 3x + 7
√3x³ + 5x – 2
3√t + t√2
Y + 1/y² + 3
X¹¹ + y³ + t²²
B. Find the coefficient of X²
2x³ + x² + x
5 – 7x² + x³ + 2
π/2x³ + x – 1
√2x – 1
(X – 1)(x + 1)
C. Write the degree of polynomial.
5x³ + 4x² + 10
4 – 4y² + 5y + 2
T³ – 5
20
D. Find the value of p(a) when
P(x) = 3x² + 8x + 4 and a = -2
P(x) = x² + x – 6 and a = -3
P(x) = x³ – 2x + 2 and a = -1
P(x) = x³ + 3x² + x – 1 and a = -1

1) What is the German Parliament known as ? 2) Which Article of the Weimar Constitution gave the President the powers to impose emergency, suspend civil rights and rule by decree ? 3) Which republic country introduced after first world war and when? 4) When was Axis nation introduced and which countries are their members? 5) what effect held on germany after defeat? 6) what is Versailles agreement and what effect in this agreement on germany?

1) वाक्य की परिभाषा उदाहरण सहित दीजिए |
2) वाक्यांश की परिभाषा उदाहरण सहित दीजिए |
3) वाक्य के कितने अंग हैं ? उदाहरण सहित दीजिए |
4) अर्थ के आधार पर वाक्य के भेदों के नाम उदाहरण सहित दीजिए |
5) रचना के आधार पर वाक्य के भेदों के नाम उदाहरण सहित दीजिए |