Expansions | ICSE Mathematics Class 9 | Chapter 4 - Exercise 4A
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Concise Mathematics Class 9
Expansions | ICSE Mathematics Class 9 | Chapter 4 - Exercise 4A
4) 1. Evaluate (a/2b+2b/a)^2-(a/2b-2b/a)^2 - 4
13) if a^2 - 5a - 1 = 0 and a ≠ 0 find:
a-1 / a 2) a+1/a 3) a^2-1/a^2
14) if 3x+4y=16 and xy=4 find the value of 9x^2 + 16 y ^ 2
16) The difference between two positive numbers is 5 and the
sum of their squares is 73. Find the product of these numbers
Below are the video links for chapters.
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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