Answer:
B= - 6/5
Step-by-step explanation:
Since we know that ratio of AB : AC is 1 : √2, then we can more or less use those values for the sides, check the picture below.
so we're really looking for tan(2A). Let's bear in mind that tan²(θ) is just another way to write [ tan(θ) ]².
-8-3=-5. there . thats the answer.


Ratio of the sides of the similar triangles are equal ,

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