Expansions | ICSE Mathematics - Class 9 | Chapter 4 - Exercise 4B
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Concise Mathematics Class 9
Expansions | ICSE Mathematics - Class 9 | Chapter 4 - Exercise 4B
5) If a+2b=5 then show that a^3+8b^3+30ab=125
10) If a≠0 and a-1/a=4 find:
1) a^2+1/a^2 2) a^4+1/a4 3) a^3−1/a^3
14) The sum of two numbers is 9 and their product is 20. Find the sum of their
Squares 2) Cubes
16) If 4x^2+y^2=a and xy=b, find the value of 2x+y
Below are the video links for chapters.
Expansions Exercise 4 A
• Expansions | ICSE Mathematics Class 9 | Ch...
All Expansions exercises
• Expansions
Exercise 3 (C) Part I
• Compound Interest (Using Formula) | ICSE M...
Exercise 3 (C) Part II
• Compound Interest (Using Formula) | ICSE M...
Exercise 3 (C) Part III
• Compound Interest (Using Formula) | ICSE M...
Other exercises in this chapter • Compound Interest using Formula | Class 9 ...
For March 2021 examination of class 9
Standard IX Revised syllabus. 2020-21
For March 2021 examination of class IX
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