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If, in Delta ABC, 3a = b + c then: cot...

If, in `Delta ABC, 3a = b + c`
then: `cot (B/2) cdot cot (C/2) = .....`

A

1

B

`sqrt(3)`

C

`2`

D

none of these

Text Solution

Verified by Experts

The correct Answer is:
C
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MARVEL PUBLICATION-TRIGONOMETRIC FUNCTIONS-MULTIPLE CHOICE QUESTIONS - PART - A : BUILDING-UP THE BASE
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  3. If, in Delta ABC, 3a = b + c then: cot (B/2) cdot cot (C/2) = .....

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  8. If, in Delta ABC, a = 13, b = 14, c = 15, then : sin (A//2) = ....

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  11. If the area Delta of Delta ABC is given by Delta = a^(2) - (b - c)^(2)...

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  13. If (3pi)/(2) lexle2pi " then :"sin^(-1) (sinx)= ...

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  14. If 0ltxltpiand x ne(pi)/(2) , " then:" tan^(-1) (tanx)=...

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  15. Principal value of sin^(-1)[sin((5pi)/(6))] is

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