1.

ax which tth

Answer»

Compare x² - 2px + 1 = 0 with

ax² + bx + c = 0.,

a = 1 ,

b = - 2p ,

c = 1 ,

If roots are not real then

discreaminant < 0

b² - 4ac < 0

( - 2p )² - 4 × 1 × 1 < 0

4p² - 4 < 0

4p² < 4

p² < 4/4

p ² < 1

p < ± 1

Therefore ,

If p < ±1 then the equation has

no real roots.

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