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Roots of 3^(x)+3^(-x)=10/3 are...

Roots of `3^(x)+3^(-x)=10/3` are

A

0,1

B

1,-1

C

0,-1

D

None of these

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The correct Answer is:
B
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MOTION-QUADRATIC EQUATION-EXERCISE -1 (OBJECTIVE PROBLEMS)
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  3. Roots of 3^(x)+3^(-x)=10/3 are

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  4. If the roots of the equation x^(2)+2ax+b=0 are real and distinct and t...

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  7. Let a gt 0, b gt 0 and c lt0. Then, both the roots of the equation ax^...

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  9. If a, b, c are integers and b^2=4(ac + 5d^2), d in N, then roots of th...

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  10. Let a, b and c be real numbers such that 4a + 2b + c = 0 and ab gt 0. ...

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  11. The expression y = ax^2+ bx + c has always the same sign as of a if

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  12. If a ,b in R ,a!=0 and the quadratic equation a x^2-b x+1=0 has imagi...

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  14. If the equations k(6x^2+3)+rx+2x^2-1=0 and 6k(2x^2+1)+px+4x^2-2=0 have...

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  16. The equations x^2 +5x^2 +px +q=0 and x^3+ 7xa+ px+ r =0have two roots ...

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  17. If alpha,beta,gamma,delta are the roots of the equation x^4-K x^3K x^2...

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  18. If the roots of the equation x^(3)+Px^(2)+Qx-19=0 are each one more th...

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  19. If the equation x^(4)-4x^(3)+ax^(2)+bx+1=0 has four positive roots, f...

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  20. Q. If (6x^2-5x-3)/(x^2-2x+6)<=4, then the least and the highest values...

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