Q.

Assertion (A): If the graph of a polynomial touches x-axis at only one point, then the polynomial cannot be a quadratic polynomial.

Reason (R): A polynomial of degree n (n > 1) can have at most n zeros.

1 Both A and R are true, and R is the correct explanation of A  
2 Both A and R are true, but R is not the correct explanation of A  
3 A is true, but R is false  
4 A is false, but R is true  

Ans.

(4)

Assertion (A) is false as the graph of a polynomial that touches x-axis at one point can be a quadratic polynomial having real and equal zeros. Reason is always true