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If a,b are two numbers such that a ^(2) ...

If a,b are two numbers such that `a ^(2) +b^(2) =7 and a ^(3) + b^(3) =10,` then :

A

The greatest value of `|a+b|=5`

B

The greatest value of `(a+b) ` is 4

C

The leatest value of `(a+b)` is 1

D

The least vlaue of `|a+b|` is 1

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VK JAISWAL ENGLISH-QUADRATIC EQUATIONS -EXERCISE (ONE OR MORE THAN ONE ANSWER IS/ARE CORRECT)
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  3. If satisfies |x-1| + |x-2|+|x-3|gt6, then :

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  4. If both roots of the quadratic equation ax ^(2)+x+b-a =0 are non real ...

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  5. If a,b are two numbers such that a ^(2) +b^(2) =7 and a ^(3) + b^(3) =...

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  6. The number of non-negative integral ordered pair(s) (x,y) for which (x...

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  12. The equation cos ^(2) x - sin x+lamda = 0, x in (0, pi//2) has roots t...

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  13. If the equation ln (x^(2) +5x ) -ln (x+a +3)=0 has exactly one solutio...

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  14. The number of non-negative integral ordered pair (s) (x,y) for which ...

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  15. For a<0, determine all real roots of the equation x^2-2a|x-a|-3a^2=0.

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  16. If 0 lt a lt b lt c and the roots alpha,beta of the equation ax^2 +...

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  17. Solve : | x - 1| + |x - 2| + | x - 3 | gt 6

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  18. The value of 'k' for which roots of the equation 4x^2-2x+k=0 are comp...

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