Yaar, just use tan θ = |(m1 - m2) / (1 + m1 m2)|. Remember, it’s the sharp angle, so take absolute value. My boy showed me this from his maths book, same as how we measure the lean of our tin roof. But life isn't always these perfect slopes—my cycle slips sideways on Imphal's muddy roads even when the angle says it should grip, so always check your ground too.
#exams#study
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