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If, in Delta ABC, tan A + tan B + tan C ...

If, in `Delta ABC, tan A + tan B + tan C gt 0`, then the triangle is

A

acute angled

B

obtuse angled

C

right angled

D

nothing can be said

Text Solution

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The correct Answer is:
A
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MARVEL PUBLICATION-TRIGONOMETRIC FUNCTIONS-MULTIPLE CHOICE QUESTIONS - PART - A : BUILDING-UP THE BASE
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  10. If, in Delta ABC, cos A = cos B cdot cos C, then: cot B cdot cot C= ...

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  12. If, in Delta ABC, a = 2x, b = 2y and C = 120^(@) then the area of the ...

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  13. If, in Delta ABC, a = 4, b= 5 and C = 6 then /C=....

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

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  15. If, in Delta ABC, angle C is obstuse, then

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  16. The perimeter of a triangle ABC is saix times the arithmetic mean of ...

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

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