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If in a DeltaABC, the incricle passing t...

If in a `DeltaABC,` the incricle passing through the point of intersection of perpendicular bisector of sides BC, AB, then `4 sin ""A/2sin ""B/2sin""C/2` equal to

A

`sqrt2`

B

`sqrt2-1`

C

`sqrt2+1`

D

`1/2`

Text Solution

Verified by Experts

The correct Answer is:
B
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ARIHANT MATHS-PROPERTIES AND SOLUTION OF TRIANGLES -Exercise (Single Option Correct Type Questions)
  1. If in a right angle DeltaABC,4 sin A cos B-1 =0 and tan A is finite, t...

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  2. Find (d^2y)/dx^2 , if y = cos^(-1)x

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  3. If in a DeltaABC, the incricle passing through the point of intersecti...

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  4. If two sides of a triangle are roots of the equation x^2-7x+8=0 and th...

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  5. If median AD of a triangle ABC makes angle (pi)/(6) with side BC, then...

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  6. If the perimeter of the triangle formed by feet of altitudes of the t...

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  7. In a triangle with one angle (2pi)/(3), the lengths of the sides form ...

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  8. If the sides of a Delta ABC are in AP and a is the smallest sie, then ...

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  9. If p is the produce of the since of angles of a triange, and q the pro...

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  10. Let C be incircle of DeltaABC. If the tangents of lengths t(1),t(2) an...

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  11. If the sine of the angles of DeltaABC satisfy the equation c^(3)x^(3)-...

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  12. In triangle ABC, medians AD and CE are drawn AD = 5, angle DAC = pi//8...

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  13. In a triangle ABC, a ge b ge c. If (a^(3)+b^(3)+c^(3))/(sin ^(3)A +s...

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  14. Solve the following system of inequalities graphically 2x + 4y le 8 , ...

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  15. In a delta ABC, a,c, A are given and b(1) , b(2) are two values of thi...

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  16. In a triangle ABC, if cot A =(x^(3)+x^(2) +x)^(1/2), cot B= (x+x^(-1)+...

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  17. In a Delta ABC, a,b,A are given and c(1), c(2) are two values of the ...

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  18. In Delta ABC, if a = 10 and b cot B + c cot C = 2(r + R) then the maxi...

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  19. Find the second order derivative of the function x^3 + 4x^2 +2

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  20. Let a,b,c be the sides of a triangle. Now two of them are equal to lam...

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