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Choose correct alternatives: If acute angle between lines ax2 + 2hxy + by2 = 0
Mathematics and Statistics (Arts and Science)
Pair of Straight Lines
Question
Updated
19 Aug 2026
Choose correct alternatives: If acute angle between lines ax2 + 2hxy + by2 = 0 is, pi/4, then 4h2 = ______.
A
Choose Your Answer
A
a 2 + 4ab + b 2
B
a 2 + 6ab + b 2
C
(a + 2b)(a + 3b)
D
(a – 2b)(2a + b)
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