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Given an isoceles triangle with equal si...

Given an isoceles triangle with equal side of length b and angle `alpha lt pi//4`, then
the inradius r is given by

A

`R=1/2b cosec alpha`

B

`Delta=2b^(2)sin 2 alpha`

C

`r=(b sin 2 alpha)/(2(1+cos alpha))`

D

`OI|(b cos ((3 alpha)/(2)))/(2 sin alpha((alpha)/(2)))|`

Text Solution

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The correct Answer is:
A, C, D
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ARIHANT MATHS-PROPERTIES AND SOLUTION OF TRIANGLES -Exercise (More Than One Correct Option Type Questions)
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  5. Find the second order derivative of the function x^(6) + 2

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