plzz solve Q 2and Q5..
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=> No. of zeroes of polynomial P(x) is equal to 1 .
5) Using Pythagoras theorem in triangle OPQ ( right angled at P) ,
=> OQ^2 = OP^2 + PQ^2
=> PQ^2 = OQ^2 - OP^2
=> PQ^2 = (12)^2 - (5)^2 = 144 - 25
=> PQ = √119 .