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In Delta ABC, if a,b,c are in A.P, then ...

In `Delta ABC`, if a,b,c are in A.P, then `tan""A/2 tan""C/2`=

A

`1//4`

B

`1//3`

C

3

D

None

Text Solution

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

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  2. If the area of a triangle satisfies the relation Delta =a^2 -(b-c)^2, ...

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  3. In Delta ABC, if a,b,c are in A.P, then tan""A/2 tan""C/2=

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  4. In Delta ABC, if tan""A/2,tan""B/2, tan""C/2 are in H.P, then a,b,c ar...

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  5. In Delta ABC, if a/c=(sin(A-B))/(sin (B-C)), then a^2,b^2,c^2 are in

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  6. In Delta ABC, if cot""A/2,cot""B/2,cot""C/2 are in A.P. then a,b,c are...

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  7. In Delta ABC, if sin^2""A/2, sin^2""B/2,sin^2""C/2 are in H.P, then a,...

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  8. In Delta ABC, if a cos^2""C/2+c cos^2""A/2=(3b)/2 then a,b,c are in

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  9. In Delta ABC, if tan""A/2=5/6, tan""C/2=2/5 then

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  10. If tan.(A)/(2)=(5)/(6)andtan.(C)/(2)=(2)/(5) then determine the relati...

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  11. In Delta ABC, if 3 tan ""A/2 tan""C/2=1 then a,b,c are in

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  12. In Delta ABC, if tan A, tan B, tan C are in H.P., then a^2,b^2,c^2 are...

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  13. In Delta ABC, if sin A: sin C=sin (A-B): sin (B-C), then a^2,b^2,c^2 a...

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  14. If the angles A,B,C of a triangle are in A.P and sides a,b,c are in G....

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  15. In Delta ABC,if (a+b)/(1-ab) b,(b+c)/(1-bc) are in A.P then a,1//b,c a...

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  16. In Delta ABC, if C=A-B=60^@, then the value of (a-b)/c=

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  17. In Delta ABC, if A=60^@ then b/(c+a)+c/(a+b)=

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  18. If C=60^(@), " then show that"(a)/(b+c)+(b)/(c+a)=1

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  19. In Delta ABC, if C=60^@ then 1/(a+b)+1/(a+c)=

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  20. In Delta ABC, if C=60^@ then b/(c^2-a^2)+a/(c^2-b^2)=

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