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If a + b + c = 9 and ab + bc + ca = 15, find: a^2 + b^2 + c^2u200bu200bu200bu200bu200bu200bu200b .
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Mar 15, 2019
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Class 9
by
kratos
If a + b + c = 9 and ab + bc + ca = 15, find: a2 + b2 + c2 .
class-8
class-9
algebraic identities
icse
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+3
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answered
Jun 11, 2020
by
kratos
Best answer
a2 + b2 + c2 = 81 - 30 = 51
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