If x=- 3 4 and x is in the second quadrant, then what is the value of x x?

NDA 2021 Mathematics question

If and is in the second quadrant, then what is the value of ?

Answer: (D)

With , take a right triangle with perpendicular 3, base 4 and hypotenuse 5. In the second quadrant and , so and .

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Question ID VK-033507