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If sqrt(86-60sqrt2)=a-b sqrt2, then what...

If `sqrt(86-60sqrt2)=a-b sqrt2`, then what will be the value of `sqrt(a^2+b^2)`, correct to one decimal place ?
यदि `sqrt(86-60sqrt2)=a-b sqrt2` है, तो एक दशमलव स्थान तक `sqrt(a^2+b^2)` का मान ज्ञात करें |

A

8.4

B

8.2

C

7.8

D

7.2

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PINNACLE-ALGEBRA-EXERCISE
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  11. If x+1/(16x)=3, then the value of 16x^3+ 1/(256x^3) is: यदि x+1/(16...

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  13. If x^4-83x^2+1=0, then the value of x^3- x^-3 can be : यदि x^4-83x...

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  14. If (5x+1)^3+(x-3)^3+8 (3x-4)^3= 6(5x+1) (x-3)(3x-4), then x is equal t...

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  15. If 8x^3-27y^3= (Ax+By)(Cx^2-Dy^2+6xy) , then (A+B+C-D) is equal to : ...

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  16. If x=(sqrt5- sqrt3)/(sqrt5+ sqrt3) and y is the reciprocal of x, then ...

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  17. If sqrt(10-2 sqrt21)+ sqrt(8+2 sqrt15)= sqrta+ sqrt b, where a and b a...

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  18. ab(a-b)+bc(b-c)+ca(c-a) is equal to : ab(a-b)+bc(b-c)+ca(c-a) किसके ...

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  19. Given that (5x-3)^3+(2x+5)^3+27 (4-3x)^3 =9(3-5x)(2x+5)(3x-4) ,then th...

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