Question

6
If a2 + b2 = 13 and ab = 6, find (i) a + b (ii) a – b​

Answer 1

Answer:

hey mate here's ur answer

given: a² + b² = 13 and ab = 6

we know that

(a+b)² = a² + b² + 2ab

=> (a+b)² = 13 + 2(6)

=> (a+b)² = 13 + 12

=> a + b = √25

=> a + b = ±5

also,

(a-b)² = a² + b² - 2ab

=> (a-b)² = 13 - 2(6)

=> (a-b)² = 13 - 12

=> a - b = √1

=> a - b = ±1

Step-by-step explanation:

Answer 2

Answer:

ans 839

Step-by-step explanation:

please do in your self