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In DeltABC if, |{:(1,b,c),(1,c,a),(1,b,c...

In `DeltABC` if, `|{:(1,b,c),(1,c,a),(1,b,c):}|=0` then `sin^(2)A+sin^(2) C` is equal to

A

`(4)/(9)`

B

`(9)/(4)`

C

`3sqrt(3)`

D

1

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The correct Answer is:
B
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AAKASH SERIES-PROPERTIES OF TRIANGLES-PRACTICE SHEET (EXERCISE-I) (LEVEL-II) (Straight- Objective Type Questions)
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  18. In Delta ABC, if (2 cos A)/a+ (cos B)/b+ (2 cos C)/c=a/(bc)+b/(ca), th...

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