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UPSC NDA Math Model Paper 2

Comprehension:(Que No. 102 - 103)
Direction: For the next two (2) items that follow:
Given that tan α and tan β are the roots of the equation x2+bx+c=0 with b ≠ 0

Question : 103

Total: 120

What is sin (α + β) sec α sec β equal to?

b
-b
c
-c

Validate

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