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IF x^2+x+1,2x+1,x^2-1 are the sides of a...

IF `x^2+x+1,2x+1,x^2-1` are the sides of a triangle then its largest angle is

A

`pi//3`

B

`pi//4`

C

`pi//6`

D

`2pi//3`

Text Solution

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The correct Answer is:
D
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DIPTI PUBLICATION ( AP EAMET)-PROPERTIES OF TRIANGLES -EXERCISE 1A
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  2. In Delta ABC, if cot""A/2: cot""B/2:cot ""C/2=1:4:15, then the greates...

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  3. IF x^2+x+1,2x+1,x^2-1 are the sides of a triangle then its largest ang...

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  4. If the sides of a triangle are in the ratio x:y:sqrt(x^2+xy+y^2), then...

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  5. The sides of a triangle are sin alpha,cos alpha and sqrt(1+sin alpha c...

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  6. The smallest angle of the triangle whose sides are 6+sqrt12,sqrt48,sqr...

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  7. IF the angles of a triangle are in the ratio 2:3:5, then the ratio of ...

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  8. If the angles of a right angled triangle are in A.P then the sides are...

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  9. IF the angles of a triangle are in the ratio 1:2:3, the corresponding ...

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  10. If the angles of a triangle are in the ratio 1:2:7, then the ratio of ...

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  11. The angles of a triangle are in the ratio 3:5:10. Then the ratio of th...

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  12. IF the angles of triangle are in the ratio 1:1:4 then the ratio of the...

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  13. In Delta ABC, if sin^2 A+sin^2 B=sin^2 C, then C=

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  14. In Delta ABC, sin A: sin B: sin C is

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  15. The sides of a right angled triangle are in A.P then they are in the r...

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  16. The circumcentre of a triangle lies with in the triangle only when the...

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  17. In Delta ABC, if cos^2 A+ cos^2 B+cos^2 C=1, then the triangle is

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  18. In Delta ABC, if cos A+cos B+ cos C=3//2, then the triangle is

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  19. In Delta ABC,if tan A+ tan B + tan C= 3sqrt3, then the triangle is

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  20. In Delta ABC, if tan B tan C+tan C tan A+tan A tan B=sqrt3 tan A tan B...

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