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  • 3 answers

Virat Chauhan 11 hours ago

Here a=3

Ragini Dushadh 1 day, 19 hours ago

Here given, x=1 and y=2 Now putting the value of x and y in equation 2x+ay=8 2*1+a*2=8 2+2a=8 2a=8-2 2a=6 a=6/2 a=3

Bhavya Raj 1 day, 21 hours ago

Here, x=1 &y=2 A/q 2×1+2a=8 = 2a=8-2 = a=6/2 = a=3
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Ashish Kumar Singh 3 days, 21 hours ago

n m + m n = mn m 2 +n 2 = mn (m+n) 2 −mn ⇒ n m + m n = mn (m+n) 2 −1.....(1) Given that m and n are the zeroes of the polynomial 3x 2 +11x−4. Therefore, Sum of zeroes =m+n=− a b =− 3 11 Product of zeroes =mn= a c = 3 −4 ∴ n m + m n = ( 3 −4 ) ( 3 −11 ) 2 −1=− 16 121 −1=− 16 137 Hence the value of n m + m n wil be − 16 137 .
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Muskaan Syed 6 days, 17 hours ago

Let √13+√17be rational. √13+√17=a/b.√13=a/b-17.√13=a-√17/b. It's a fact that√13 is irrational. Hence, our assumption is incorrect. Hence proved that √13+√17 is irrational.

Ayan Ansari 1 week ago

Let
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Anjali Anabd 1 week, 1 day ago

(2 SQRT 3)/5    = 2/5 SQRT 3          

                         = RATIONAL X IRRATIONAL  = IRRATIONAL    (2/5 - RATIONAL    SQRT 3 IS IRRATIONAL)

                         =  IRRATIONAL     

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Anjali Anabd 1 week, 1 day ago

3x2+ 8x +k​​​

let a and b are zeroes then  b = 1/a (given)

product of zeroes = constant/ coefficient of x2​​​​​​​  =  k/3

a x b  = a x 1/a  = 1 

so k/3 = 1

so k =3

 

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