1.

For an increasing A.P. a1,a2,a3...an, if a1+a3+a5=−12 and a1⋅a3⋅a5=80, then which of the following is true.

Answer»

For an increasing A.P. a1,a2,a3...an,
if a1+a3+a5=12 and a1a3a5=80, then which of the following is true.




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