Question

If roots of a2-Ma+1 =0 are equal then m= ​

Answer 1

Step-by-step explanation:

• a^2-ma+1=0
• above equation is a quadratic equation.
• in quadratic equation we have two roots
• for the equal roots , (-m)^2- 4 ×1×1 = 0
• =}. m^2 - 4 =0
• =}. m^2. = 4

=} m. =. +2

Answer 2

Answer:

m = +2 or -2

Step-by-step explanation:

a² - ma + 1 = 0

(a')a² + ba + c = 0

where a' and b are coefficients and c is a constant term

a' = 1 , b = -m , c = 1

If it has equal roots then D = 0, that is, Discriminent = 0

so,

b² - 4a'c = 0

(-m)² - 4(1)(1) = 0

m² - 4 = 0

m² = 4

m = √4

m = +2 or -2

Hope you understood it........All the best