Question

(m + n) = 4, mn = 3.75 तर 2m - 2n = किती?​

Answer 1

Answer:

2

Step-by-step explanation:

m + n = 4..............................(1)

(m + n)$^{2}$ = 4$^{2}$ = 16

mn = 3.75

4mn = 4 x 3.75 = 1

(m-n)$^{2} = (m+n)^{2}$ - 4mn

(m-n)$^{2} = 16 - 15 =1</p><p>(m-n) = [tex]\sqrt{1}$ =1

2m-2n= 2(m-n) = 2 x 1 = 2

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