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If x + y = 15 and xy = 14, then the valu...

If x + y = 15 and xy = 14, then the value of x - y is:
यदि + y = 15 और xy = 14 है, तो x - y का मान है:

A

11

B

12

C

14

D

13

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PINNACLE-ALGEBRA-EXERCISE
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  2. If 2a + 3b = 8 and ab = 5, then find the value of 4a^2+9b^2. यदि 2a ...

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  4. If a = 355, b = 356, c = 357, then find the value of a^3+b^3+c^3-3abc....

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  7. If a and b are two positive real numbers such that 4a^2 + b^2 = 20 and...

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  10. If x + y = 4 and x^3+y^3=12, then the value of x^4+y^4=? यदि x + y =...

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  11. If x-y = 13 and xy = 25, then the value of x^2-y^2=? यदि x-y = 13 और...

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  12. If x-1/x= 8, then x^4+1/x^4 is equal to : यदि x-1/x= 8 है, तो x^4+...

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  13. If a + 3b = 12 and ab = 9, then the value of (a - 3b) is: यदि a + 3b...

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  14. If a^2+2/a^2=16, then find the value of (72a^2)/(a^4+2+8a^2).

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  15. If 1+9r^2+81r^4=256 and 1 + 3r + 9r^2= 32, then find the value of 1 - ...

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  16. If x+1/x= 4, then x^4+1/x^4 is equal to : यदि x+1/x= 4 है, तो x^4+1...

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  18. If x=3+2 sqrt2, then the value of x^2+1/x^2 is : यदि x=3+2 sqrt2, ...

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  19. If x+4/x-4=0, then the value of x^2-4 is equal to : यदि x+4/x-4=0, x...

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