If θ is the acute angle between the pair of lines ax² + 2hxy + by² = 0, then tan θ is equal to:

Type: MCQ • Marks: 1

A. (√(h² - ab)) / (a + b)

B. (2√(h² - ab)) / (a + b)

C. (h² - ab) / (a + b)

D. (a + b) / (2√(h² - ab))

Explanation

Standard formula for angle between pair of lines: tan θ = 2√(h² - ab) / (a + b).

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UP TGT Mathematics

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