Question

r.d sharma class 9 solutions of chapter 4
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Answer 1

Answer:

Class 9 RD Sharma Solutions Chapter 4 Algebraic Identities Ex 4.2. If a + b + c = 0 and a2 + b2 + c2 = 16, find the value of ab + be + ca. If a2 + b2 + c2 = 16 and ab + bc + ca = 10, find the value of a + b + c. If a + b + c = 9 and ab + bc + ca = 23, find the value of a2 + b2 + c2.