Grade 12Algebra
Q.19 see image..........................................................
Q.19 see image..........................................................
1 Answer
Aditya Gupta
option C is correct.
draw the figure, apply sine rule in ABD, pythagoras and elementary trigono in ACD, and finally cosine rule on angle ADB.
eliminate and find the final ans as
2(c^2 – a^2)/3ca
kindly approve:)
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