1.

A quadratic equation whose roots are tan22 1^(@)/2 and cot22 1^(@)/2 is

Answer»

`X^(2)-2sqrt2x+1=0`
`2X^(2)-sqrt2x+1=0`
`x^(2)+2sqrt2x-1=0`
`x^(2)-2sqrt2x-1=0`

ANSWER :A


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