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The angles of a triangle are in the rati...

The angles of a triangle are in the ratio `3:5:10`. Then the ratio of the smallest side to the greatest side is

A

` 1 : sin 10 ^(@) `

B

` 1: 2 sin 10 ^(@) `

C

` 1 : cos 10 ^(@)`

D

` 1 : 2 cos 10 ^(@) `

Text Solution

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The correct Answer is:
D
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AAKASH SERIES-PROPERTIES OF TRIANGLES-EXERCISE - 1
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  3. The angles of a triangle are in the ratio 3:5:10. Then the ratio of th...

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  4. If a = 26, b = 30 , cos C = ( 63 )/( 65) then C=

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  5. ( cos A) /( a) + ( cos B) /( b ) + ( cos C ) /( c )

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  6. ( b- c)^(2) cos ^(2) ( A//2) + ( b+ c) ^(2) sin ^(2) ( A//2) =

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  7. In Delta ABC,a(b cos C-c cos B)=

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  8. In Delta ABC, b cos (C+ theta)+c cos (B- theta)=

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  9. If A = (pi )/(4) , B = ( 5pi )/(12) " then " a + sqrt( 2 ) c=

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  10. In Delta ABC, (cos C+ cos A)/(c+a)+(cos B)/b=

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  11. If tan.(C-A)/(2)=k cot.(B)/(2) then find k .

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  12. If tan ((A -B)/( 2)) = (1)/(3) tan ((A+B)/( 2)) then a : b is

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  13. If (b-c) cos A/2 = a ( sin k ) then k =

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  14. If in a Delta ABC, a, b, c are in A.P . Then cos ((A- C)/( 2)) ...

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  15. In Delta ABC,if 3a=b+c, then cot""B/2.cot""C/2=

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  16. If (a+b+c) (b+c-a) = 3bc then find angle A .

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  17. In Delta ABC, (b-c)^2 +4bc sin^2 (A//2)=

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  18. If 2 sin ""( A) /( 2) sin ""( C)/(2) = sin "" ( B) /(2) then a,b,c ...

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  19. If 2 cot ""( B)/(2) = cot "" (A) /( 2) + cot "" ( C )/(2) then a,b,...

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

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